# SES/SNS のバウンス通知が、TopicArn のセキュリティ強化後に EmailLog と一致しなくなった

**URL:** <https://meta.discourse.org/t/ses-sns-bounce-notifications-no-longer-match-emaillog-after-topicarn-security-hardening/411536>\
**Category:** Bug\
**Tags:** email\
**Created:** [2026 年 9 月 2 日午後 11:13 UTC](https://meta.discourse.org/t/ses-sns-bounce-notifications-no-longer-match-emaillog-after-topicarn-security-hardening/411536 "2026-09-02T23:13:42Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)\
**Post date:** [2026 年 10 月 23 日午前 2:45 UTC](https://meta.discourse.org/t/ses-sns-bounce-notifications-no-longer-match-emaillog-after-topicarn-security-hardening/411536/4 "2026-10-23T02:45:33Z")

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次のプルリクエストで修正されます：

> <https://github.com/discourse/discourse/pull/44995>
>
> Use the original Message-ID from SES headers to find the corresponding email log…, rather than the SES-assigned ID. Document the SNS setup requirements and cover header fallbacks and mismatched IDs.

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