# Custom Email Theme Issue

**URL:** <https://forum.mautic.org/t/custom-email-theme-issue/16688>\
**Category:** Mautic 3 - Install/Upgrade Support\
**Created:** [October 22, 2020, 4:35pm UTC](https://forum.mautic.org/t/custom-email-theme-issue/16688 "2020-10-22T16:35:19Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![cremigerhonig](https://avatars.discourse-cdn.com/v4/letter/c/9de053/32.png) [@cremigerhonig](https://forum.mautic.org/u/cremigerhonig)\
**Post date:** [July 5, 2024, 10:17am UTC](https://forum.mautic.org/t/custom-email-theme-issue/16688/13 "2024-07-05T10:17:25Z")

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my email theme is also making problems

is it related to this issue?

# [Not sending emails - adding various CSS to mails - sending email create 503 error](https://forum.mautic.org/t/not-sending-emails-adding-various-css-to-mails-sending-email-create-503-error/32651)

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_[View the full topic](https://forum.mautic.org/t/custom-email-theme-issue/16688)._