# Custom headers in webhooks?

**URL:** <https://community.brevo.com/t/custom-headers-in-webhooks/2125>\
**Category:** Transactional\
**Created:** [Septembre 17, 2024, 5:47 UTC](https://community.brevo.com/t/custom-headers-in-webhooks/2125 "2024-09-17T17:47:31Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![captaincause](https://avatars.discourse-cdn.com/v4/letter/c/ce7236/32.png) [@captaincause](https://community.brevo.com/u/captaincause)\
**Post date:** [Septembre 17, 2024, 5:47 UTC](https://community.brevo.com/t/custom-headers-in-webhooks/2125/1 "2024-09-17T17:47:31Z")

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Hello ! The documentation on transactional webhooks mentions that custom headers added on the emails are sent back to the webhook.

However I am observing that headers are not in the payload that comes back in the webhook ?

More info on my set-up : I am sending emails in a Rails app through SMTP, and adding the headers in the ActionMailer action directly. I can see the `X-Mailin-YYYY` header in the email, but not in the webhook?

My headers are:  
X-Mailin-Env  
X-Mailin-Vote-Id  
X-Mailing-Email-Type

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**Author:** ![ahudavert](https://dub1.discourse-cdn.com/flex013/user_avatar/community.brevo.com/ahudavert/32/14_2.png) [@ahudavert](https://community.brevo.com/u/ahudavert)\
**Post date:** [Septembre 18, 2024, 2:50 UTC](https://community.brevo.com/t/custom-headers-in-webhooks/2125/2 "2024-09-18T14:50:40Z")

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Hi @captaincause , thanks for posting on this community.

From the email the `X-Mailin-Custom` header is passed on to the webhooks payload, but  
any other custom header is not forwarded to client in the webhook payload.

So you can add the info in this `X-Mailin-Custom` header, and receive the same field in the webhook payload.