List, I am in the process of migrating to Cyrus IMAP. I have a test server (CentOS 5 x86_64) with several accounts and I look forward to placing the IMAP server in production but I have recently noticed a problem. Certain emails that are delivered into a mailbox are not visible to the email client. I believe this may have to do with consecutive emails to the same mailbox with minimal time between the deliveries, but I can not consistently reproduce the problem. In this case, two separate and different emails are delivered and only the first is visible. I do not believe this is a client specific problem. I have the general log files indicating delivery and protocol telemetry logs for the user in question. It is not until I log out and log back in do I see the second message. The relevant log snippets mentioned above are attached. Name: server.log (evidence of consecutive delivery) Name: user_tel.log (from line 259; evidence of only first message visible, but not second) Name: user_tel-2.log (evidence that upon log out and log in, second message appears) Name: imapd.conf (for completeness) Name: cyrus.conf (for completeness) Bear with me as I am not well versed in IMAP protocol specifics. The user telemetry logs show that the IDLE daemon notified the client of a new message through the EXISTS command. When the IMAP client then does a FETCH command, the server only returns the first of the two delivered messages. (user_tel.log) The server is built with the following options ./configure --enable-idled --enable-murder --enable-replication --enable-listext --with-ldap --with-openssl --with-sasl --with-snmp --without-bdb --with-cyrus-user=cyrus --with-cyrus-group=cyrus I am also using the "Parse Received: headers for internaldate" patch from http://cyrus.brong.fastmail.fm/. I believe this is needed to retain INTERNALDATE when migrating. Could the patch from fastmail be the culprit? What other steps can I take to help troubleshoot this problem?
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server.log
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user_tel.log
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user_tel-2.log
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imapd.conf
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