Hi Jeremy, Thanks for your quick answer.
> On 19 Apr 2025, at 16:06, Jeremy Harris via Exim-users > <exim-users@lists.exim.org> wrote: > > On 2025/04/19 2:36 PM, Sander ter Steege via Exim-users wrote: >> I do like to know the other option to solve this problem and also to know >> why this works, as the documentation on the options for submission mode are >> rather sparse and I could not find what this actually does except forcing >> exim to accept $authenticated_id to be the complete address. Is this because >> most MUA's do not set the From: header properly? From debugging the >> conversation between Thunderbird and exim it does look like Thunderbird uses >> the proper From: > > You did check the Concept Index for "submission mode"? Yes I did, Most of it leads to Chapter 48, and at 5.7 it reads: If a submission-mode message does not contain a From: header line, Exim adds one if either of the following conditions is true: <option list> Where the session is authenticated and per the tip from Lena an empty domain is specified, so now it works. But I do not understand why the From line Thunderbird is not used, because there is one and from the looks of it in the debugging output it is valid. — Regards, Sander. -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## exim-users-unsubscr...@lists.exim.org ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
