The following problem occurs with some of the mail accounts when connecting to courier-imap-1.4.3 using mail client (Outlook Express/Eudora): 1) "unexpected termination of connection" message after 1 minute (even if timeout limit on client is > 1 minute) or 2) "timeout waiting for server" message after the timeout limit set in the mail client (continuing to wait beyond the timeout will retrieve the messages)
The first message occurs when Norton Antivirus 2001 e-mail protection is enabled for the account. If the e-mail protection for the account is removed the second message appears. The problem only occurs for accounts that have 80Mb+ or 1500+ messages on the server. I noticed that about 2 seconds after the authentication started the server's hard disk showed high activity and that after some time I got one of the above error messages. Using telnet I got the following responses from the server: $telnet server 110 +OK Hello there. USER username +OK Password required. PASS password (start of heavy disk activity - up to several minutes before OK displayed) +OK logged in. It seems to me that courier-imap authenticates the user, does something on the server (creates message list?), and then sends the authentication confirmation back to the client. The duration of the disk activity is dependant on the size of the mail account, i.e. the more messages or the greater the mail account the longer it takes for the server to respond. Two questions arise from this problem: 1) Is this behaviour normal, i.e. large account resulting in long authentication delay? 2) How do I avoid/solve the problem (I know removing old messages from server to reduce size is an option but one I'd like to avoid)? The server is old and slow but it is used as a mail server only (see configuration listed below) and I believe it should be able to do the job. The server has approximately 10 accounts and receives/sends about 100 messages in total per day. Server Configuration - Hardware: Pentium 100, 32Mb RAM, 6Gb ATA-33 hard disk - O/S: Red Hat 7.1 - Services: Postfix, courier-imap-1.4.3 (using authpam for authentication) Mail Clients - Outlook Express 6 - Eudora 4 Any help would be appreciated. Regards, Michael A Beckmann _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
