# Every email should have a unique Message-ID

**URL:** <https://meta.discourse.org/t/every-email-should-have-a-unique-message-id/92746>\
**Category:** Bug\
**Tags:** email\
**Created:** [19.Июль.2018 19:02:05 UTC](https://meta.discourse.org/t/every-email-should-have-a-unique-message-id/92746 "2018-07-19T19:02:05Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![dan](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/dan/32/101549_2.png) [@dan](https://meta.discourse.org/u/dan)\
**Post date:** [21.Июль.2018 18:26:39 UTC](https://meta.discourse.org/t/every-email-should-have-a-unique-message-id/92746/10 "2018-07-21T18:26:39Z")

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I am not exactly sure what’s up with the secondary emails feature, but if all of them are used to notify the user your approach may cause issues. If a user has multiple email addresses then it is going to receive multiple emails with the same Message-ID.

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