---
title: Amazon SES Email Deliverability Consulting | FactualMinds
description: Amazon SES email consulting from an AWS Select Tier Partner. SPF/DKIM/DMARC setup, inbox placement optimization, sender reputation, and scalable email infrastructure.
url: https://www.joinhorizon.co/services/aws-ses/
category: email
updated: 2026-10-24
---

# Amazon SES Email Deliverability Consulting | FactualMinds

> SPF, DKIM, and DMARC setup, inbox placement optimization, sender reputation management, and cost-effective email infrastructure — from an AWS Select Tier Partner who has scaled clients to 200M+ emails per month.

## What is AWS SES?

AWS Simple Email Service (SES) is a cloud-based email platform that enables businesses to send and receive emails at scale with industry-leading deliverability, security, and cost efficiency. Whether you need to send transactional emails (order confirmations, password resets, shipping notifications), marketing campaigns, or automated notifications, SES provides the infrastructure to handle millions of emails per day at a fraction of the cost of traditional email service providers.

SES is not just an SMTP relay. It is a full email platform with domain authentication, deliverability tools, sending analytics, content filtering, and email receiving capabilities — all integrated into the broader AWS ecosystem. At FactualMinds, we help organizations design, deploy, and optimize SES implementations that deliver consistently to the inbox. We have helped clients scale from thousands to [over 200 million emails per month](https://www.joinhorizon.co/case-study/aws-ses/) while maintaining strong sender reputation and deliverability.

> **Looking to migrate from SendGrid, Mailgun, or SparkPost to SES?** See our dedicated [SES Migration & Email Delivery Services](https://www.joinhorizon.co/services/aws-ses-migration/) for migration-specific planning, IP warming, and cutover strategies.

## Why Organizations Choose AWS SES

### Unmatched Cost Efficiency

As of **July 21, 2026**, SES offers **a-la-carte** outbound at **$0.10 per 1,000** emails _and_ hierarchical **Essentials / Pro / Enterprise** pricing plans (higher unit rates; Pro adds **$105**/account/region/month, Enterprise **$500**). Plans bundle deliverability capabilities; they do **not** make dedicated IPs free on Essentials/a-la-carte. Standard dedicated IPs remain about **$24.95**/month each a-la-carte; managed DIPs and Global VDM are included on Pro/Enterprise (see the [SES pricing plans guide](https://www.joinhorizon.co/blog/amazon-ses-pricing-plans-essentials-pro-enterprise-2026/)).

Illustrative **a-la-carte send-only** vs typical ESP tiers (before attachments, DIPs, or plan fixed fees):

| Monthly Volume    | SES a-la-carte send | SendGrid Pro               | Mailgun Scale              |
| ----------------- | ------------------- | -------------------------- | -------------------------- |
| 100,000 emails    | $10                 | $19.95                     | $35                        |
| 500,000 emails    | $50                 | $99.95                     | $90                        |
| 1,000,000 emails  | $100                | $249+                      | $250+                      |
| 10,000,000 emails | $1,000              | Custom (typically $2,000+) | Custom (typically $1,500+) |

When you need managed dedicated IPs + Global VDM, model **Pro** against a-la-carte add-ons — Pro often wins at mid volume.

### AWS Ecosystem Integration

SES integrates natively with other AWS services, enabling powerful email workflows:

- **Lambda** — Trigger functions on email events (bounce, complaint, delivery) for real-time processing
- **SNS** — Publish email events to topics for fan-out to multiple subscribers
- **SQS** — Queue email events for reliable, ordered processing
- **S3** — Store received emails and email templates
- **CloudWatch** — Monitor sending metrics, set alarms on bounce/complaint rates
- **Kinesis Data Firehose** — Stream email events to data lakes for analytics

### Proven Scale

SES handles a significant portion of Amazon's own email — order confirmations, shipping notifications, and marketing communications for hundreds of millions of customers. This battle-tested infrastructure means SES can scale to handle virtually any volume without you managing a single mail server.

## Email Authentication: The Foundation of Deliverability

Email authentication is the single most important factor in inbox placement. Without proper authentication, your emails are far more likely to be flagged as spam, regardless of content quality. We configure all three authentication protocols as part of every SES implementation.

### SPF (Sender Policy Framework)

SPF tells receiving mail servers which IP addresses are authorized to send email on behalf of your domain. We configure SPF records to include SES sending IPs and any other authorized sources (Google Workspace, Microsoft 365, marketing platforms).

### DKIM (DomainKeys Identified Mail)

DKIM adds a cryptographic signature to every email, allowing receivers to verify the email was not tampered with in transit and was genuinely sent from your domain. SES supports Easy DKIM with 2048-bit keys and automatic key rotation.

### DMARC (Domain-based Message Authentication, Reporting, and Conformance)

DMARC ties SPF and DKIM together and tells receiving servers what to do with emails that fail authentication — monitor, quarantine, or reject. We implement DMARC with a phased approach:

1. **Monitor mode** (`p=none`) — Collect reports without affecting delivery
2. **Quarantine mode** (`p=quarantine`) — Send failing emails to spam
3. **Reject mode** (`p=reject`) — Block unauthenticated emails entirely

We analyze DMARC reports to identify unauthorized senders using your domain (spoofing) and ensure all legitimate sources pass authentication before moving to enforcement.

Reaching DMARC enforcement (`p=quarantine` or `p=reject`) also unlocks **BIMI (Brand Indicators for Message Identification)** — a standard that displays your brand logo next to your sender name in Gmail, Yahoo Mail, and Apple Mail. BIMI requires a DMARC policy at enforcement level as a prerequisite, plus a Verified Mark Certificate (VMC) from an approved authority (Entrust or DigiCert, approximately $1,000–$1,500/year). For brands where inbox recognition and trust signals matter, BIMI is a compelling reason to accelerate DMARC enforcement. Setup steps are in our [BIMI on Amazon SES implementation guide](https://www.joinhorizon.co/blog/bimi-amazon-ses-implementation-guide/).

## 2024–2026 Bulk Sender Requirements (Google, Yahoo, Microsoft)

In February 2024, Google and Yahoo enforced requirements for anyone sending roughly 5,000 or more emails per day to their consumer addresses. **Microsoft** followed with enforcement for high-volume senders to Outlook.com / Hotmail / Live consumer mailboxes beginning **May 5, 2025**. These are delivery requirements at the mailbox-provider layer, independent of your SES account standing.

### What Is Required

**1. Email Authentication (SPF + DKIM + DMARC)**

Bulk senders must have all three authentication records configured and passing with alignment. DMARC is now mandatory at minimum `p=none` — a missing DMARC record will cause Gmail to apply additional filtering to your messages.

**2. One-Click Unsubscribe (RFC 8058)**

All marketing and bulk email must include a `List-Unsubscribe-Post` header (RFC 8058). When a Gmail user clicks "Unsubscribe" in the Gmail UI, Gmail sends a machine-processable POST request to this header URL, and the sender must honor it within two business days. A standard unsubscribe link in the email body is not sufficient.

SES does not add this header automatically — it must be included in your email templates or sending code. We implement RFC 8058-compliant unsubscribe handling as part of every campaign architecture.

**3. Gmail Spam Rate Threshold**

Gmail Postmaster Tools now enforces spam rate limits at the inbox provider level:

| Spam Rate     | Gmail Response                               |
| ------------- | -------------------------------------------- |
| Below 0.08%   | Normal delivery                              |
| 0.08% – 0.10% | Warning threshold — inbox placement degrades |
| Above 0.10%   | Delivery throttling begins                   |
| Above 0.30%   | Messages blocked or rejected                 |

This is separate from the SES account review threshold (0.1% complaint rate via SES feedback loops). Your SES account can be in good standing while Gmail is actively downgrading your inbox placement. We monitor both.

### Why This Matters for Your SES Setup

These requirements affect all bulk senders — not just new ones. If you set up SES before 2024–2025 and have not audited for Microsoft’s bar, you may still fail Outlook consumer delivery. Common gaps we find:

- DMARC policy exists but is at `p=none` without a plan to reach enforcement
- Email templates lack `List-Unsubscribe-Post` headers on marketing streams
- Spam rate not monitored in Gmail Postmaster Tools (separate from SES complaint metrics)
- SPF and DKIM passing individually but not achieving DMARC alignment
- Microsoft consumer domains never included in authentication / Postmaster-style monitoring

[Contact us to audit your SES setup for 2026 bulk-sender compliance →](https://www.joinhorizon.co/contact-us/)

## SES Architecture Best Practices

### Separate Transactional and Marketing Email

Transactional emails (password resets, order confirmations, receipts) have fundamentally different deliverability requirements than marketing emails (newsletters, promotions, re-engagement campaigns). A spam complaint on a marketing campaign should never impact your transactional email delivery.

We implement separation at multiple levels:

- **Separate configuration sets** — Different sending configurations, event destinations, and suppression lists
- **Separate dedicated IPs** — Transactional emails on their own IP pool isolated from marketing reputation
- **Separate subdomains** — `mail.yourdomain.com` for transactional, `marketing.yourdomain.com` for campaigns
- **Separate monitoring** — Independent bounce/complaint dashboards and alert thresholds

### Dedicated IP Management and Warming

When you add a new dedicated IP to SES, it has no sending history — mailbox providers like Gmail and Microsoft do not trust it yet. Sending high volumes immediately from a cold IP will result in throttling or blocking.

We implement a structured warm-up plan:

| Day   | Daily Volume   | Notes                                    |
| ----- | -------------- | ---------------------------------------- |
| 1-3   | 200-500        | Send only to your most engaged contacts  |
| 4-7   | 500-1,000      | Gradually include broader audience       |
| 8-14  | 1,000-5,000    | Monitor bounce rates closely             |
| 15-21 | 5,000-25,000   | Check inbox placement at major providers |
| 22-30 | 25,000-100,000 | Approach target volume                   |
| 30+   | Target volume  | Full sending with ongoing monitoring     |

We adjust this schedule based on bounce rates, complaint rates, and inbox placement testing at each stage. The day-by-day method, including SES managed warm-up, is in our [SES dedicated IP warm-up guide](https://www.joinhorizon.co/blog/amazon-ses-dedicated-ip-warmup-2026/).

### Bounce and Complaint Management

SES places an account under review at a 5% bounce rate or a 0.1% complaint rate ([AWS reputation metrics messages](https://docs.aws.amazon.com/ses/latest/dg/reputationdashboardmessages.html)); the pause levels are in the alarm thresholds table below. Proactive management is essential:

- **Hard bounce suppression** — Automatically add hard-bounced addresses to the SES account-level suppression list
- **Complaint processing** — Process feedback loop (FBL) complaints via SNS and automatically unsubscribe complainants
- **Soft bounce retry logic** — Implement exponential backoff for temporary failures without over-retrying
- **List hygiene** — Verify email addresses before sending using validation services; remove inactive subscribers after defined periods
- **Tenant-level suppression (June 1, 2026)** — For SaaS, agencies, and multi-brand senders, configure suppression scope per tenant so one tenant's bounce/complaint events do not suppress delivery for the rest. Uses the same `PutSuppressedDestination` / `GetSuppressedDestination` / `DeleteSuppressedDestination` / `ListSuppressedDestinations` operations with a `TenantName` parameter

## Building Email Workflows with SES

### Transactional Email Pipeline

For applications that need reliable transactional email delivery:

```
Application → SQS Queue → Lambda (template rendering) → SES API → SNS (events) → CloudWatch (monitoring)
```

This architecture decouples email sending from your application logic, handles retries gracefully, and provides complete visibility into delivery status. For burst traffic and multi-tenant senders, the full design (consumer concurrency sized to `MaxSendRate`, throttling retries, DLQ redrive, per-tenant configuration sets) is in our [SES queued sending pattern](https://www.joinhorizon.co/patterns/ses-queued-sending-sqs-lambda/), and our [SES queued sending service](https://www.joinhorizon.co/services/aws-ses-queued-sending/) builds it for you.

### Marketing Campaign Architecture

For bulk marketing campaigns:

```
Campaign Manager → S3 (recipient lists) → Step Functions (orchestration) → Lambda (batching + throttling) → SES API → Kinesis Firehose → S3 (event archive)
```

Step Functions orchestrate the campaign lifecycle: validate the recipient list, batch sends to respect SES rate limits, track progress, and generate post-campaign analytics.

### Inbound Email Processing

SES can receive emails and trigger automated workflows:

```
Incoming Email → SES Receipt Rules → S3 (store) + Lambda (process) + SNS (notify)
```

Use cases include automated support ticket creation, document intake (invoices, contracts), lead capture from email inquiries, and automated forwarding with transformation.

## Email Deliverability Checklist

Use this checklist to evaluate your current email infrastructure health:

- [ ] SPF record configured and passing validation
- [ ] DKIM enabled with 2048-bit keys
- [ ] DMARC policy in enforcement mode (quarantine or reject)
- [ ] Dedicated IPs properly warmed (if using dedicated IPs)
- [ ] Transactional and marketing email separated on different IPs/subdomains
- [ ] Bounce rate monitored and consistently below 2%
- [ ] Complaint rate monitored and consistently below 0.05%
- [ ] Suppression list automatically updated on hard bounces
- [ ] Feedback loop complaints processed and unsubscribed
- [ ] Email content tested against spam filters before sending
- [ ] Unsubscribe links present and functional in all marketing emails
- [ ] One-click unsubscribe (RFC 8058 List-Unsubscribe-Post header) implemented for bulk mail
- [ ] List hygiene process in place (remove inactive subscribers)
- [ ] CloudWatch alarms configured for delivery metrics
- [ ] DMARC reports analyzed regularly for unauthorized senders
- [ ] Gmail Postmaster Tools connected and spam rate monitored (separate from SES complaint metrics)
- [ ] AWS Virtual Deliverability Manager (VDM) enabled and inbox placement tested
- [ ] Tenant-level suppression scope reviewed if sending on behalf of multiple tenants or brands (June 2026)

If any items are unchecked, your deliverability is at risk. [Contact us for a free deliverability assessment →](https://www.joinhorizon.co/contact-us/)

## SES Monitoring and Analytics

We implement comprehensive monitoring so you always know the health of your email infrastructure:

### Real-Time Dashboards

CloudWatch dashboards showing:

- Sends, deliveries, bounces, complaints, and rejections per hour/day
- Bounce rate and complaint rate trends with threshold indicators
- Delivery rate by mailbox provider (Gmail, Microsoft, Yahoo)
- Dedicated IP reputation scores

### AWS Virtual Deliverability Manager (VDM)

Amazon SES includes Virtual Deliverability Manager — a native deliverability intelligence tool that provides inbox placement testing, engagement analytics, and automated recommendations without requiring third-party tools.

**What VDM provides:**

- **Inbox placement testing** — Send to a seed list across 35+ mailbox providers (Gmail, Microsoft, Yahoo, Apple Mail, and more) to see where your emails land before sending to your real list
- **Inbox placement rates (May 29, 2026)** — Per-domain and per-campaign placement estimates calculated from representative industry data, available in every commercial AWS region where SES is offered. Pro-actively test candidate email content to estimate inbox placement at top mailbox providers before you press send
- **Blocklist monitoring (May 29, 2026)** — Passive, peripheral awareness of industry blocklist activity surfaced alongside the rest of the deliverability dashboard so reputation slips are caught before they escalate
- **VDM Advisor** — Automated recommendations surfacing authentication issues, poor IP reputation, high bounce rates, and problematic sending patterns
- **Engagement analytics** — Open and click tracking at the configuration set level, segmented by mailbox provider. As of **August 7, 2026**, Open and Click event payloads include `isBotEvent` (`Likely` or `Unlikely`) automatically when you already publish those events — filter bots before you treat open rate as human engagement ([What's New](https://aws.amazon.com/about-aws/whats-new/2026/08/amazon-ses-automated-email-interactions/)).
- **Send-time tracking overrides (August 21, 2026)** — `ConfigurationOverrides` on `SendEmail` / `SendBulkEmail` enable or disable open and click tracking per request, taking precedence over the configuration set. Use this for GDPR/CNIL per-recipient consent instead of maintaining a configuration set per tracking combo ([What's New](https://aws.amazon.com/about-aws/whats-new/2026/08/amazon-ses-adds-open-click-tracking-override/)).
- **Deliverability dashboard** — Centralized view of sending reputation, inbox placement rates, and complaint trends over time

**How the VDM advisor works.** The [advisor](https://docs.aws.amazon.com/ses/latest/dg/vdm-advisor.html) lists open recommendations by impact and sending identity: missing or malformed SPF, DKIM, DMARC, or BIMI records, and keys that are too short. Each recommendation links to the fix in the SES Developer Guide, and resolved items stay visible for 30 days. With global deliverability enabled, the advisor also raises a recommendation when a monitored domain or IP lands on a blocklist, with the listing reason and delisting guidance. Advisor events can be routed to Amazon EventBridge, so a new high-impact recommendation can open a ticket instead of waiting for someone to check the console.

VDM is billed per message on top of standard SES sending, and it is bundled differently across the Essentials, Pro, and Enterprise plans. Check current rates in the [SES pricing plans guide](https://www.joinhorizon.co/blog/amazon-ses-pricing-plans-essentials-pro-enterprise-2026/) before you turn it on.

We enable and configure VDM as part of all new SES implementations and retrofits.

### Bounce and Complaint Rate Alarms

SES publishes your account's reputation to CloudWatch as `Reputation.BounceRate` and `Reputation.ComplaintRate`, and per configuration set when reputation metrics are enabled on it. Values are ratios: `0.05` means 5%.

| Metric | AWS-recommended alarm | Account under review | Sending may pause |
| --- | --- | --- | --- |
| `Reputation.BounceRate` (hard bounces) | ≥ 0.05 (5%) | 5% or more | 10% or more |
| `Reputation.ComplaintRate` | ≥ 0.001 (0.1%) | 0.1% or more | 0.5% or more |

Source: [Creating reputation monitoring alarms using CloudWatch](https://docs.aws.amazon.com/ses/latest/dg/reputationdashboard-cloudwatch-alarm.html). AWS's recommended alarm sits at the review line, so we add an earlier warning alarm (typically 2% bounces and 0.05% complaints, matching the checklist above) to get time to act before review starts.

What we wire for every SES account:

- **Two alarm levels per metric** (warning and AWS-recommended), routed through SNS to the on-call channel, with missing data treated as "ignore" so quiet periods do not flap
- **Per-configuration-set alarms** for transactional, marketing, and each tenant, so a spike points at one stream instead of the whole account
- **Automatic pause of the offending stream**: the alarm publishes to SNS, and a Lambda function calls `PutConfigurationSetSendingOptions` (SESv2) with `SendingEnabled=false` for that configuration set while the rest keep sending
- **Configuration-set event destinations** to EventBridge or SNS for `BOUNCE`, `COMPLAINT`, `DELIVERY`, and `REJECT`, feeding the suppression handler and per-tenant reporting
- **Quota and backlog alarms**: sending quota utilization above 80%, and queue age when sends run through a [queued sending pipeline](https://www.joinhorizon.co/patterns/ses-queued-sending-sqs-lambda/)

### Long-Term Analytics

Using Kinesis Data Firehose to stream SES events to S3, we enable long-term analytics:

- Campaign performance trends over time
- Engagement segmentation (opens, clicks by audience — subtract `isBotEvent: Likely` before you report human open rate)
- Optimal send time analysis
- Revenue attribution for transactional emails

## SES and Compliance

### CAN-SPAM Act

All commercial emails must include a physical mailing address, a clear unsubscribe mechanism, and honest subject lines. We configure SES templates and sending logic to enforce compliance automatically.

### GDPR

For organizations sending to EU recipients, we implement consent management, data retention policies, and the ability to purge all email data for a specific individual on request. SES integrates with your consent management platform through Lambda and DynamoDB.

### HIPAA

SES is HIPAA-eligible when used within a BAA-covered AWS account. We configure SES for healthcare organizations with encryption in transit (TLS enforcement), audit logging, and access controls that meet HIPAA requirements. We also ensure [broader AWS security compliance](https://www.joinhorizon.co/services/aws-cloud-security/) for healthcare environments.

## Getting Started

Whether you are implementing SES for the first time, optimizing an existing setup, or [migrating from another email provider](https://www.joinhorizon.co/services/aws-ses-migration/), our team brings deep email infrastructure expertise and hands-on SES experience at scale.

[Contact us to discuss your email infrastructure needs →](https://www.joinhorizon.co/contact-us/)

## Features

### SES Setup & Configuration
Domain verification, email identity management, SPF, DKIM, and DMARC configuration for email best practices compliance.

### Deliverability Optimization
Improve inbox placement with feedback loop integration, dedicated IP warming, VDM advisor recommendations, and ongoing sender reputation management.

### Application & CRM Integration
Integrate AWS SES into your existing applications, CRMs, and marketing platforms for automated email workflows.

### Transactional Email Solutions
Reliable, real-time transactional emails that improve customer experience and maintain operational efficiency.

### Campaign Management
Create, schedule, and track email campaigns with built-in analytics. Per-request open/click tracking overrides (August 21, 2026) honor recipient-level consent without a configuration set per combination.

### Monitoring & Reporting
Bounce, complaint, and delivery metrics plus isBotEvent on Open/Click events (August 7, 2026) so engagement dashboards are not inflated by automated clients.

## Why FactualMinds

### Deep AWS Expertise
AWS-certified professionals with extensive SES experience — faster implementation, fewer mistakes, and direct AWS support access when issues arise.

### Cost-Effective & Scalable
Build scalable email systems that fit your budget while growing with your business.

### Custom Solutions
From enterprise multi-channel email systems to startup targeted automated messaging.

### Security & Compliance
SES setup meets GDPR, CAN-SPAM, and other compliance standards.

## FAQ

### How much does AWS SES cost compared to SendGrid or Mailgun?
A-la-carte SES outbound is still $0.10 per 1,000 emails with no monthly minimum. As of July 21, 2026, AWS also offers Essentials, Pro ($105/account/region/month), and Enterprise ($500/account/region/month) pricing plans that bundle deliverability features (VDM, managed dedicated IPs, validation, and more) at higher per-1k rates. Dedicated IPs remain billable a-la-carte (~$24.95/IP or managed DIP fees) unless included in Pro/Enterprise. At 1M emails/month on a-la-carte send-only, SES is still roughly $100 versus $250–$400+ on many ESP tiers — but compare plan totals when you need managed DIPs and Global VDM. See our SES pricing plans guide for break-even math.

### What is the difference between your SES Solutions and SES Migration services?
Our SES Solutions service covers new SES implementations, ongoing optimization, deliverability management, and application integration for organizations already on SES or building new email capabilities from scratch. Our SES Migration service is specifically for organizations moving from another email provider (SendGrid, Mailgun, SparkPost) to SES — it includes DNS cutover planning, IP warming, API endpoint migration, and reputation transfer strategies.

### How do you improve email deliverability on SES?
We take a multi-layered approach: proper authentication setup (SPF, DKIM, DMARC), dedicated IP warming over 2-4 weeks with gradually increasing volumes, bounce and complaint rate monitoring with automated suppression lists, feedback loop integration, content optimization to avoid spam triggers, and ongoing sender reputation management. We measure the result with VDM inbox placement data rather than promising a fixed percentage.

### Can SES handle both transactional and marketing emails?
Yes, and we recommend separating them using dedicated configuration sets with different dedicated IPs. Transactional emails (order confirmations, password resets, receipts) require high reliability and should not be affected by marketing email reputation. We set up separate sending identities, IPs, and monitoring for each email type.

### What happens if our SES account gets suspended?
SES places an account under review at a 5% bounce rate or 0.1% complaint rate, and can pause sending at higher rates (see the alarm thresholds table on this page). We prevent this by implementing real-time bounce and complaint monitoring, automatic suppression list management, list hygiene verification before campaigns, and gradual warm-up strategies. If suspension occurs, we handle the remediation process with AWS support to restore sending capabilities.

### Does SES support email receiving as well as sending?
Yes. SES can receive emails and trigger automated workflows — route emails to S3 for archival, invoke Lambda functions for processing, publish to SNS topics for notifications, or forward to other email addresses. We build email processing pipelines for use cases like support ticket creation, document intake, and automated reply systems.

### Do we need to meet 2024–2026 bulk sender requirements (Google, Yahoo, Microsoft)?
If you send roughly 5,000 or more emails per day to consumer mailboxes, yes. Google and Yahoo enforce SPF + DKIM + DMARC (alignment), one-click unsubscribe (RFC 8058) on marketing mail, and spam/complaint ceilings (Gmail Postmaster spam rate under 0.10%; published bulk-sender guidance also cites staying under 0.3% spam complaints). Microsoft began enforcing SPF + DKIM + DMARC for high-volume senders to Outlook consumer mailboxes on May 5, 2025. These are separate from SES account review thresholds (bounce ~5%, complaint ~0.1% via SES feedback). We audit and remediate all three provider bars as part of deliverability work.

### What happens if our SES account gets suspended and Gmail is throttling delivery?
SES reviews your account on its own bounce and complaint rates (see the alarm thresholds table on this page). Additionally, Gmail enforces its own spam rate thresholds via Gmail Postmaster Tools — these operate independently of your SES account status. Gmail begins degrading inbox placement at a 0.08% spam rate and throttles delivery above 0.10%. You could have a healthy SES account while Gmail is actively blocking your mail. We prevent this by implementing real-time bounce and complaint monitoring, automatic suppression list management, list hygiene verification before campaigns, gradual warm-up strategies, and Gmail Postmaster Tools integration for cross-visibility. If suspension occurs, we handle the remediation process with AWS support to restore sending capabilities.

### How do I set up an Amazon SES bounce rate alert?
Open Reputation metrics in the SES console, choose View in CloudWatch on the bounce rate pane, and create an alarm on Reputation.BounceRate with a static threshold of Greater/Equal 0.05 (the metric is a ratio, so 0.05 is 5%). Send it to an SNS topic your on-call team watches and treat missing data as ignore. Add an earlier warning alarm (for example 0.02) so you can act before AWS places the account under review at 5%.

### What bounce and complaint rates get an Amazon SES account paused?
AWS places the account under review at a bounce rate of 5% or more and may pause sending at 10% or more. For complaints, review starts at 0.1% and sending may pause at 0.5%. Rates are calculated over a representative volume of your recent sending, and only hard bounces count toward the bounce rate.

### How do I monitor Amazon SES bounce rate per customer or per mail stream?
Send each stream (transactional, marketing, each tenant) through its own configuration set, enable reputation metrics on each one, and publish BOUNCE and COMPLAINT events to an EventBridge or SNS event destination. CloudWatch then has per-configuration-set reputation metrics you can alarm on, and an alarm action can pause just that configuration set instead of the whole account.

### What does the Virtual Deliverability Manager advisor check?
The VDM advisor flags infrastructure problems by sending identity and impact: missing or malformed SPF, DKIM, DMARC, and BIMI records and DKIM keys that are too short, with a link to the fix for each. With global deliverability enabled it also reports when a monitored domain or IP is on a blocklist, including delisting guidance. Advisor events can be sent to EventBridge for automated ticketing.

---

*Source: https://www.joinhorizon.co/services/aws-ses/*