From: Stephen J Eglen <sje30@cam.ac.uk>
To: notmuch@notmuchmail.org
Subject: Tags in the headers of mail files
Date: Sun, 31 May 2026 19:23:46 +0100
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Hi,

I have a few old mail files (from my time with other mailers), where the tags are saved in the mail headers like "X-Labels: tag1".

Does anyone here routinely deal (read/write) tags in mail headers?  I'm aware that the notmuch philosophy is treat the incoming mail as immutable.  However, from my point of view having tags in the mail headers would mean:

(a)  the state is in the file, not the notmuch db.

(b) I could trim down some of the crazily longer headers that microsoft outlook generates.

Just asking on here in case anyone has done the above, not asking for any change to notmuch (which is awesome, thank you).

Best wishes,

Stephen


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