# CHAT- Mail-Headers

**URL:** <https://forum.delta.chat/t/chat-mail-headers/683>\
**Category:** Uncategorized\
**Created:** [November 18, 2019, 7:40pm UTC](https://forum.delta.chat/t/chat-mail-headers/683 "2019-11-18T19:40:27Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![uheist](https://forum.delta.chat/letter_avatar_proxy/v4/letter/u/ac8455/32.png) [@uheist](https://forum.delta.chat/u/uheist)\
**Post date:** [November 18, 2019, 7:40pm UTC](https://forum.delta.chat/t/chat-mail-headers/683/1 "2019-11-18T19:40:27Z")

</div>

Hello,

I saw that there are some E-Mail-Headers starting with ‘Chat-’

Is it possible to add an Headerline to my mailclient to show each recipient which is using Delta Chat that I’m also using this Messenger?

Chat-Version: 1.0  
or  
List-Subscribe: ,[mailto:DeltaChat@landstuhl.info?subject=Chat&body=Hi](mailto:DeltaChat@landstuhl.info?subject=Chat&body=Hi)

Or should i change my signature?

Best Regards

Ulli

---

<div class="post-metadata">

**Author:** ![Simon](https://forum.delta.chat/user_avatar/forum.delta.chat/simon/32/287_2.png) [@Simon](https://forum.delta.chat/u/Simon)\
**Post date:** [November 18, 2019, 10:57pm UTC](https://forum.delta.chat/t/chat-mail-headers/683/2 "2019-11-18T22:57:26Z")

</div>

email headers aren’t normally shown to the user, so I would for for the signature

---

<div class="post-metadata">

**Author:** ![r10s](https://forum.delta.chat/user_avatar/forum.delta.chat/r10s/32/1513_2.png) [@r10s](https://forum.delta.chat/u/r10s)\
**Post date:** [October 6, 2026, 3:00pm UTC](https://forum.delta.chat/t/chat-mail-headers/683/3 "2026-10-06T15:00:08Z")

</div>