For some reason emails are received but not showing in the mailbox. They are marked as clean in the logs but never show in the mailbox. I have tried reindexing the mailbox. The /var/log/carbonio.log seem to show thousands of these.
Jul 8 17:15:04 mail postfix/smtpd[1082771]: connect from localhost[127.0.0.1]
Jul 8 17:15:04 mail postfix/smtpd[1082771]: lost connection after CONNECT from localhost[127.0.0.1]
Jul 8 17:15:04 mail postfix/smtpd[1082771]: disconnect from localhost[127.0.0.1] commands=0/0
Jul 8 17:15:14 mail postfix/postscreen[77058]: CONNECT from [127.0.0.1]:54056 to [127.0.0.1]:25
Jul 8 17:15:14 mail postfix/postscreen[77058]: ALLOWLISTED [127.0.0.1]:54056
Jul 8 17:15:14 mail postfix/smtpd[1082762]: connect from localhost[127.0.0.1]
Jul 8 17:15:14 mail postfix/smtpd[1082762]: lost connection after CONNECT from localhost[127.0.0.1]
Jul 8 17:15:14 mail postfix/smtpd[1082762]: disconnect from localhost[127.0.0.1] commands=0/0
Jul 8 17:15:24 mail postfix/postscreen[77058]: CONNECT from [127.0.0.1]:48394 to [127.0.0.1]:25
Jul 8 17:15:24 mail postfix/postscreen[77058]: ALLOWLISTED [127.0.0.1]:48394
Jul 8 17:15:24 mail postfix/smtpd[1079358]: connect from localhost[127.0.0.1]
Jul 8 17:15:24 mail postfix/smtpd[1079358]: lost connection after CONNECT from localhost[127.0.0.1]
Jul 8 17:15:24 mail postfix/smtpd[1079358]: disconnect from localhost[127.0.0.1] commands=0/0
Jul 8 17:15:34 mail postfix/postscreen[77058]: CONNECT from [127.0.0.1]:47924 to [127.0.0.1]:25
Jul 8 17:15:34 mail postfix/postscreen[77058]: ALLOWLISTED [127.0.0.1]:47924
Jul 8 17:15:34 mail postfix/smtpd[1082769]: connect from localhost[127.0.0.1]
Jul 8 17:15:34 mail postfix/smtpd[1082769]: lost connection after CONNECT from localhost[127.0.0.1]
Jul 8 17:15:34 mail postfix/smtpd[1082769]: disconnect from localhost[127.0.0.1] commands=0/0
Jul 8 17:15:40 mail postfix/postscreen[77058]: CONNECT from [127.0.0.1]:56490 to [127.0.0.1]:25
Jul 8 17:15:40 mail postfix/postscreen[77058]: ALLOWLISTED [127.0.0.1]:56490
Jul 8 17:15:40 mail postfix/smtpd[1079365]: connect from localhost[127.0.0.1]
Jul 8 17:15:40 mail postfix/smtpd[1079365]: lost connection after CONNECT from localhost[127.0.0.1]
Jul 8 17:15:40 mail postfix/smtpd[1079365]: disconnect from localhost[127.0.0.1] commands=0/0