I am sorry for re-posting what Igor Belikov posted on this list two years ago (and unanswered) because I got the same problem and the answer isn't really obvious (googling around can lead me some really complex discussion on how to detect and shut down the expired/dead connection but not direct answer) here is the question: Hello info-cyrus, We have clients that get his (or her) mail via dial-up connections. If dial-up session terminates abnormally (while getting mail) and client redial and try to continue get his mail - he receive error: Mailbox is locked by POP server I understand what is the problem: Cyrus don't see ending previous POP session and think that client still using mailbox, and don't allow him begin new session. Is it possible to turn this behavior off? We have enough dial-up clients, and nobody of them using IMAP - only POP3. I know that POP3 do not allow concurrent connection, as written clearly in RFC. Problem being our customer use really damn stupid email client that looks occasionally dropping connection without notifying server, and other email service providers here in China seems to handle this particular email client pretty well. The email client also doesn't support any of TLS, IMAP or LDAP and is very popular here (popular for non-technical reason of course) that if we don't support it, customers prefer to choose another email service provider who can. "I am used to use xxx product" is such a strong reasoning from customer that service providers cannot simply ignore and suggest Thunderbird & IMAP (I already suggested many times). Best regards Zhang Weiwu ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
