search for: left_str

...files solves the problem. This seems to happen only to some accounts but I haven't managed to find which ones. I'm using dovecot's deliver to deliver the messages. Panic: IMAP(user at example.com): file index-sort-string.c: line 575 (index_sort_add_ids_range): assertion failed: (strcmp(left_str, str) < 0) Here goes the output of dovecot -n # 1.1.rc7: /opt/dovecot-1.1.rc7/etc/dovecot.conf base_dir: /var/run/dovecot/ protocols: imap listen: *:10143 ssl_disable: yes disable_plaintext_auth: no shutdown_clients: no login_dir: /var/run/dovecot/login login_executable: /opt/dovecot/libexec/d...