Dovecot 2.3.21 Fallback MOVE to COPY on read-only namespaces
2 Oct
2025
2 Oct
'25
4:18 p.m.
Hi I’m running Dovecot 2.3.21 with additional namespaces that point to read-only maildir snapshots. The setup works fine for browsing and copying messages, but when using Roundcube Webmail 1.5.3, there is a problem with the IMAP MOVE command.
- If I try to move a message from a read-only namespace, Roundcube issues UID MOVE, which fails (as expected, since MOVE = COPY + DELETE, and DELETE is impossible).
- What I would need is a way for Roundcube to fallback to COPY when the source/destination namespace is read-only ?
I already tested:
imap_move = false
in Roundcube config- Overriding capabilities in Dovecot (
imap_capability
) to remove MOVE, but this does not fully work. - Using INDEX=MEMORY / CONTROL outside snapshot for namespaces.
What I’m looking for:
- workaround in Dovecot to hide MOVE capability only for specific namespaces.
- or Roundcube plugin or patch that intercepts MOVE and replaces it with COPY for read-only namespaces.
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Maciej Milaszewski