Managing the AWS SES Suppression List and Hard Bounces Safely
Learn how the AWS SES suppression list works, why hard bounces put your account at risk, and how to search and remove suppressed addresses safely.
Kash Sajadi 3 min read A customer says they are not receiving a password reset. Before removing their address from an Amazon SES suppression list, find out why it was added and whether that problem has been resolved. Removing an entry is easy; restoring delivery safely requires a little context.
AWS provides suppression management in both the SES console and API. SendOps can bring that investigation into the same workspace as your contacts, message history, and email workflows.
Understand the delivery failure
A hard bounce indicates a permanent delivery failure, such as a nonexistent mailbox. A soft bounce indicates a temporary or message-specific problem, such as a full mailbox or an oversized message. SES retries some temporary failures, but exhausting retries does not automatically turn every soft bounce into a hard bounce. Inspect the final bounceType, bounceSubType, and recipient diagnostic.
A complaint is a separate signal: the recipient reported the message as spam. Treat it as a reason to stop sending and review consent, rather than as an address typo.
AWS documents these fields in its bounce and complaint notification reference.
Check your suppression settings
Automatic suppression depends on the reasons enabled for your account and any configuration-set overrides. With the relevant reasons enabled, SES adds hard-bounce or complaint recipients and prevents matching future delivery attempts. Check each AWS Region you use.
Do not confuse the raw count of bounce events with Reputation.BounceRate. Account-level suppression can produce failure events without increasing the reputation metric. Follow the AWS reputation dashboard guidance when assessing account health; a custom daily bounce ratio is not a substitute.
Find and remove an entry in the AWS console
An authorized operator can manage individual entries without writing a script:
- Open Amazon SES in the account and Region that sent the message.
- Under Configuration, choose Suppression list.
- Find the recipient and inspect the reason, date, and available feedback details using View report.
- Investigate the original failure and confirm the exact address with the customer through an existing support channel.
- Once the issue is resolved and sending is appropriate, select the entry and choose Remove.
The SES API also provides GetSuppressedDestination and DeleteSuppressedDestination for integrating this process into your own tools. AWS’s suppression-list guide covers console and API procedures, including bulk operations.
Use a recovery checklist
Before removing a suppression, answer four questions:
- Is this the correct mailbox? Correct a typo in the contact record; do not keep retrying the mistyped address.
- Has the underlying problem been fixed? A repaired mailbox or corrected recipient configuration is useful evidence. Time passing alone is not.
- Does the recipient want this message? Clearing a delivery block does not undo an unsubscribe or establish marketing consent. Review a complaint-related request explicitly.
- Will every sending path respect the decision? Your application, campaigns, and automation may have separate eligibility checks. Record the reason for recovery and monitor the next appropriate send.
Avoid blanket removal of the list. It discards the evidence protecting your next campaign without fixing the causes of earlier failures.
What SendOps adds
The choice is not between writing scripts and using SendOps: the AWS console is a valid option for occasional suppression work. A shared workflow becomes useful when support, marketing, and engineering need the same context without all receiving AWS console access.
SendOps connects to your AWS account and adds message reporting, contact management, segments, and lifecycle workflows. Your sending resources remain in AWS; contacts, consent, events, and campaign content are held by SendOps.
Keep these three concepts separate during an investigation:
| Record | What it tells you |
|---|---|
| AWS SES suppression list | Whether SES has an account-level entry for the address. |
| SendOps Undeliverable view | Which ingested failure signals or recurrence rules flagged the address for attention. |
| Contact consent | Whether the intended message is permitted by the contact’s subscription preferences. |
Inspect each relevant record before restoring delivery. Clearing an Undeliverable entry does not remove an AWS suppression or resubscribe the contact. SendOps permissions also determine who can view records and who can change them.
For recurring failures, see our guide to SES suppression-list limitations. For a broader investigation, start with fixing SES bounce and complaint rates.