# DKIM signature warning: You are not signing recommended headers

**URL:** <https://community.ciphermail.com/t/dkim-signature-warning-you-are-not-signing-recommended-headers/831>\
**Category:** General\
**Created:** [February 26, 2023, 6:01pm UTC](https://community.ciphermail.com/t/dkim-signature-warning-you-are-not-signing-recommended-headers/831 "2023-02-26T18:01:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ToZ](https://dub1.discourse-cdn.com/flex017/user_avatar/community.ciphermail.com/toz/32/140_2.png) [@ToZ](https://community.ciphermail.com/u/ToZ)\
**Post date:** [February 26, 2023, 6:01pm UTC](https://community.ciphermail.com/t/dkim-signature-warning-you-are-not-signing-recommended-headers/831/1 "2023-02-26T18:01:01Z")

</div>

I ran my mail server through a security test ([https://www.email-security-scans.org](https://www.email-security-scans.org)) and it came back with the below DKIM related feedback:

 ![image](https://europe1.discourse-cdn.com/flex017/uploads/ciphermail/original/1X/ae1029bfbbfc7f50c0d8b49a04b2dce894f84d5d.png)

Not an error, but something the site suggests to improve.  
Is there a way to configure which parts of the header are included in the dkim signature?