ZhangHuangbin wrote:
Please check Dovecot log /var/log/dovecot/*.log to figure out what happened to the emails.
Repeating error in dovecot.log
Jul 31 15:54:51 mail dovecot: imap: Error: DETAIL: Key (username, domain)=(myUser@myDomain.com, myDomain.com) already exists. (reply took 0.047 secs (0.000 in dict wait, 0.048 in other ioloops, 0.000 in locks, async-id reply 0.036 secs ago, started on dict-server 0.040 secs ago, took 0.040 secs))