# Emails with customised headers are not sent

**URL:** <https://forum.mautic.org/t/emails-with-customised-headers-are-not-sent/27043>\
**Category:** Product Support\
**Created:** [February 15, 2023, 1:02pm UTC](https://forum.mautic.org/t/emails-with-customised-headers-are-not-sent/27043 "2023-02-15T13:02:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![davidepell](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/davidepell/32/627_2.png) [@davidepell](https://forum.mautic.org/u/davidepell)\
**Post date:** [February 15, 2023, 1:02pm UTC](https://forum.mautic.org/t/emails-with-customised-headers-are-not-sent/27043/1 "2023-02-15T13:02:03Z")

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My problem is:  
I need to collect emails in my Amazon SES via a customised header of this type X-SES-CONFIGURATION-SET. When I insert the custom header into the advanced settings of the email, it is no longer delivered. I have tried sending either a mass mailing, an automatic campaign or a simple test mailing. In none of these cases was the email delivered to the sender.

**How can I solve this?**