Amazon SES now supports S/MIME email signing
- Announced
- Tags
- amazon-simple-email-service
- Severity
- info, set by
reef/rss-rule-v1 - Source
- https://aws.amazon.com/about-aws/whats-new/2026/09/amazon-ses-supports-smime-signing
<p><a href="https://aws.amazon.com/ses/">Amazon Simple Email Service (SES)</a> now supports Secure/Multipurpose Internet Mail Extensions (S/MIME) signing, giving you a way to help recipients verify your emails are authentic. An S/MIME signature lets recipients confirm that a message was sent by the holder of the From address and that its content was not altered in transit.</p> <p>Previously, senders who needed S/MIME had to sign each message themselves before submitting it to SES, adding complexity to their sending. With this feature, you store your signing certificate in <a href="https://aws.amazon.com/certificate-manager/">AWS Certificate Manager</a> and enable S/MIME signing for your sender identity. SES then signs your messages automatically as you send, so you don't have to sign messages yourself beforehand. Recipients whose email clients don't support S/MIME can still read the message normally. This gives security-conscious senders a simple way to add digital signatures to their email while continuing to use their existing SES setup.</p> <p>This feature is available in all AWS Regions where Amazon SES is available. To learn more about S/MIME signing in Amazon SES, visit the <a href="https://console.aws.amazon.com/ses">Amazon SES console</a> or refer to the <a href="https://docs.aws.amazon.com/ses/latest/dg/send-email-authentication-smime.html">documentation</a>.</p>
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