We're running courier-imap at a site with a fairly large number of Win95 boxes running Netscape 4.7x, and they've been complaining of BSODs related to the Netscape mail program. I've done some testing using tcpflow to look at the traffic between a Win95 box and the server, and nothing looks out of the ordinary in the conversation between the Win95 box and courier's pop3 server.
Unfortunately we can't replace the Win95 systems with something more stable because they're running accounting and billing software on these machines that doesn't work on newer versions of Windows (and certainly not under Linux or freebsd which is what I would like to run :-). I thought the problem might be related to the SMTP sending process because the Linux MTA was presenting a multi-line 2xx response at the beginning of the conversation (I saw this crash Applixware's Linux mail client several years ago). I cut the SMTP banner down to a single line, and the crashes continue. The only thing that hit me looking at this that might cause problems is the length of the UIDs returned by the UIDL command. The response is a list of messages with a sequence number, and most of the Maildir file name. In our case the Maildir file name is pretty long as we're using the MD5 checksum of the message body as the primary part of the sequence part of the name and the FQDN of the mail host giving a total length around 72 characters. My thought is that these long lines might be triggering buffer overflows in the Netscape program as it handles these lists of messages. Has anybody else on the list run into similar problems with Win95 clients? I'm planning on deploying courier-imap at some regional ISP sites with several thousand mailboxes, and don't really want to generate a support nightmare (even if I don't have to answer the phones :-). Bill -- INTERNET: [EMAIL PROTECTED] Bill Campbell; Celestial Software LLC UUCP: camco!bill PO Box 820; 6641 E. Mercer Way FAX: (206) 232-9186 Mercer Island, WA 98040-0820; (206) 236-1676 URL: http://www.celestial.com/ ``Our Foreign dealings are an Open Book, generally a Check Book.'' Will Rogers ------------------------------------------------------- This sf.net email is sponsored by: DEDICATED SERVERS only $89! Linux or FreeBSD, FREE setup, FAST network. Get your own server today at http://www.ServePath.com/indexfm.htm _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
