Dovecot 2.4.2: How to fix maildir incoming mails going to cur/ instead of new/
Add the following to dovecot.conf if you use maildir:
Disable the maildir breaking default behavior of
mail_attachment_detection_options, as setting ANY flag forces you out of new/
and into cur/
mail_attachment_detection_options =
..and voila, maildir works as it previously did. This is *hinted* to in the migration guide document, as the old default value was shown as blank in the table, but I didn't figure it out till reading through the source code to find what was adding the 'a' flag to all incoming mails (thus forcing them out of new, as any flag does this).
Cheers,
Thomas "Andy" Baugh | Software Development Engineer IV andy.baugh@webpros.com
Hello Andy,
Do you need new emails to land in the new folder and not immediately
in the cur folder, since they are marked as new by the flag?
Wouldn't it be better to have the emails in the cur folder but still
marked as new emails?
Best regards, Klaus.
Add the following to dovecot.conf if you use maildir:
Disable the maildir breaking default behavior of
mail_attachment_detection_options, as setting ANY flag forces you
out of new/
and into cur/
mail_attachment_detection_options =
..and voila, maildir works as it previously did. This is *hinted* to
in the migration guide document, as the old default value was shown
as blank in the table, but I didn't figure it out till reading
through the source code to find what was adding the 'a' flag to all
incoming mails (thus forcing them out of new, as any flag does this).Cheers,
Thomas "Andy" Baugh | Software Development Engineer IV andy.baugh@webpros.com
dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-leave@dovecot.org
--
e-Mail : klaus@tachtler.net Homepage: https://www.tachtler.net DokuWiki: https://dokuwiki.tachtler.net
Per the maildir standard, *any* flag other than \Recent automatically moves you from new/ to cur/. Thus this new flag for attachment status breaks the old flow. Sure, IMAP or whatever can cover for this by specifically keying on the \Seen flag to convey read status (which it *does* do), but there's still plenty of scripts/customers out there that rely on the old maildir behavior to implement their own filtering or whatever. This breaks those people's long standing assumptions, thus you get angry customers sending support tickets demanding to fix this :)
Cheers,
Thomas "Andy" Baugh | Software Development Engineer IV andy.baugh@webpros.com http://www.webpros.com/
From: Klaus Tachtler via dovecot <dovecot@dovecot.org> Sent: Tuesday, January 13, 2026 2:00 AM To: dovecot@dovecot.org <dovecot@dovecot.org> Subject: Re: Dovecot 2.4.2: How to fix maildir incoming mails going to cur/ instead of new/
Hello Andy,
Do you need new emails to land in the new folder and not immediately in the cur folder, since they are marked as new by the flag?
Wouldn't it be better to have the emails in the cur folder but still marked as new emails?
Best regards, Klaus.
Add the following to dovecot.conf if you use maildir:
Disable the maildir breaking default behavior of
mail_attachment_detection_options, as setting ANY flag forces you
out of new/
and into cur/
mail_attachment_detection_options =
..and voila, maildir works as it previously did. This is *hinted* to in the migration guide document, as the old default value was shown as blank in the table, but I didn't figure it out till reading through the source code to find what was adding the 'a' flag to all incoming mails (thus forcing them out of new, as any flag does this).
Cheers,
Thomas "Andy" Baugh | Software Development Engineer IV andy.baugh@webpros.com
dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-leave@dovecot.org
--
e-Mail : klaus@tachtler.net Homepage: https://www.tachtler.net/ DokuWiki: https://dokuwiki.tachtler.net/
dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-leave@dovecot.org
participants (2)
-
Andy Baugh
-
Klaus Tachtler