Can you re-add your domain in Amazon WorkMail organization? You can click 'Add domain' and enter the same domain name without deleting it or editing. This step will refresh the workmail setup. Please check if you can send emails after adding the domain. When you add a new domain, an Amazon Simple Email Service (Amazon SES) sending authorization policy is automatically added to the domain identity policy with the workmail organization name (ex: m-1234dfsdss*). The policy will provide WorkMail service account to send emails from your SES service. If the account was removed or policy was altered, we will receive this error. Please let us know if you can send email after re-adding domain.
Have you set up the required IAM permissions for WorkMail?
When you are testing via the SES Console - are you sending and receiving from the same addresses as what you testing when you encounter the outbound issues?
Quick clarification - when you say Webmail, are you referring to AWS SES? Or are you referring to AWS Workmail?
If using SES only (and not Workmail)
- Check if your account is in Sandbox or Production Mode. Sandbox Mode has limitations such as recipient email addresses must be verified and send from email addresses/domains must be verified as well: https://docs.aws.amazon.com/ses/latest/DeveloperGuide/request-production-access.html.
If using WorkMail:
- Validate that the domain is setup properly in WorkMail: https://docs.aws.amazon.com/workmail/latest/adminguide/add_domain.html
- For WorkMail users, validate that those are setup properly and enabled: https://docs.aws.amazon.com/workmail/latest/adminguide/manage-users.html.
- Verify Domain: https://docs.aws.amazon.com/workmail/latest/adminguide/domain_verification.html
Thank you for the details. Since you have mentioned as your send email was suspended for few days. Can you please check with AWS account team for any restrictions are still in place?
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