# Custom postfix config / always\_bcc

**URL:** <https://discourse.mailinabox.email/t/custom-postfix-config-always-bcc/467>\
**Category:** Help with Setup/Upgrade\
**Created:** [May 13, 2015, 3:47pm UTC](https://discourse.mailinabox.email/t/custom-postfix-config-always-bcc/467 "2015-05-13T15:47:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jackvictor](https://discourse.mailinabox.email/user_avatar/discourse.mailinabox.email/jackvictor/32/125_2.png) [@jackvictor](https://discourse.mailinabox.email/u/jackvictor)\
**Post date:** [May 13, 2015, 3:47pm UTC](https://discourse.mailinabox.email/t/custom-postfix-config-always-bcc/467/1 "2015-05-13T15:47:05Z")

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I need to log all incoming and outgoing messages. Postfix gives you a way to do this by setting always\_bcc in the config file. (I want to push a copy of every message to a go/rethinkdb server for storage/API)… From what I’ve read you can’t do ANY customization with mail-in-a-box. Is this 100% true? If I go in to the server and tweak postfix settings will they get overwritten? Or should I fork the codebase and make the changes there?

Thanks.

Jack

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**Author:** ![JoshData](https://discourse.mailinabox.email/user_avatar/discourse.mailinabox.email/joshdata/32/2153_2.png) [@JoshData](https://discourse.mailinabox.email/u/JoshData)\
**Post date:** [May 15, 2015, 11:41am UTC](https://discourse.mailinabox.email/t/custom-postfix-config-always-bcc/467/2 "2015-05-15T11:41:16Z")

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Postfix settings won’t get overwritten.