# Ability to customize SMTP Header for emails?

**URL:** <https://forum.mautic.org/t/ability-to-customize-smtp-header-for-emails/10754>\
**Category:** Product Support\
**Created:** [September 28, 2018, 5:05pm UTC](https://forum.mautic.org/t/ability-to-customize-smtp-header-for-emails/10754 "2018-09-28T17:05:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![eric-white](https://avatars.discourse-cdn.com/v4/letter/e/a698b9/32.png) [@eric-white](https://forum.mautic.org/u/eric-white)\
**Post date:** [September 28, 2018, 5:05pm UTC](https://forum.mautic.org/t/ability-to-customize-smtp-header-for-emails/10754/1 "2018-09-28T17:05:17Z")

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Hi, we want to set up sending certain emails from specific IPs. We are using Sparkpost to send emails through Mautic. Is there a way to customize the SMTP header so we can specify which IP pool we are sending through?

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**Author:** ![silavapi](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/silavapi/32/7424_2.png) [@silavapi](https://forum.mautic.org/u/silavapi)\
**Post date:** [October 17, 2019, 4:33pm UTC](https://forum.mautic.org/t/ability-to-customize-smtp-header-for-emails/10754/2 "2019-10-17T16:33:14Z")

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