# Add a filter for all outgoing emails

**URL:** <https://discourse.mailinabox.email/t/add-a-filter-for-all-outgoing-emails/10395>\
**Category:** Help with Unusual Circumstances\
**Created:** [April 28, 2023, 3:20pm UTC](https://discourse.mailinabox.email/t/add-a-filter-for-all-outgoing-emails/10395 "2023-04-28T15:20:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![alkaid](https://discourse.mailinabox.email/letter_avatar_proxy/v4/letter/a/e95f7d/32.png) [@alkaid](https://discourse.mailinabox.email/u/alkaid)\
**Post date:** [April 28, 2023, 3:20pm UTC](https://discourse.mailinabox.email/t/add-a-filter-for-all-outgoing-emails/10395/1 "2023-04-28T15:20:08Z")

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Hi all,  
I want to add a filter that allows me to add a PHP-generated element to all outgoing emails. I’ve tried several things but it doesn’t work. Do you have any leads to give me ?

In advance, many thanks