Receive email incoming to servicename@mydomain.com

   Reply from address should be myname@mydomain.com

   Receive email incoming to servicename@mydomain.com

   Reply from address should be servicename@mydomain.com

   Go to Account Settings

   Enable Reply from this identity when delivery headers match

   Enter your domain prefixed by a wildcard (*), for example *@yourdomain.com

   Close/confirm all your changes

   Open an email that was sent to one of your catch-all addresses and click the reply button.

   The FROM field should be the catch-all address and not your general address.

I have my own mail server and use different addresses for different services. When I reply to an email it always changes to my default address (myname@mydomain.com). When I receive an email to servicename@mydomain.com I want to reply with the from address being servicename@mydomain.com, not myname@mydomain.com. I can edit the address manually, but sometimes I forget and I end up sending replies with myname@mydomain.com. servicename can be variable per email. Current faulty situation: Receive email incoming to servicename@mydomain.com Reply from address should be myname@mydomain.com New wanted situation: Receive email incoming to servicename@mydomain.com Reply from address should be servicename@mydomain.com This was built into Thunderbird for a while now. Go to Account Settings Enable Reply from this identity when delivery headers match Enter your domain prefixed by a wildcard (*), for example *@yourdomain.com Close/confirm all your changes Open an email that was sent to one of your catch-all addresses and click the reply button. The FROM field should be the catch-all address and not your general address. But it has been broken for a while now. https://www.reddit.com/r/Thunderbird/comments/a0uqtl/use_to_address_as_from_address_when_replying/