Roundcube fell back to php's default_socket_timeout of 10s, while moving
50 messages out of a 46k-message maildir inbox takes Dovecot about 35s;
the move succeeded but Roundcube reported it as failed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RywMtsL8qXG7GDY3MHq9Uh