Mailbox is locked by POP server

[Martin Schiøtz]

Hi

I'm using cyrus-imapd-2.3.1-2.6. I sometimes get this pop3 error. The
user can login but not receive mails. I get the error for different
pop3 users. Can somebody help?

Dec  3 20:13:57 BlackPete pop3[15503]: login:
0x50a33597.unknown.tele.dk [80.163.53.151] 200000ba plaintext User
logged in
Dec  3 20:13:57 BlackPete pop3[15503]: Unable to lock maildrop
user.200000ba: Mailbox is locked by POP server

- Martin