Yes-- cleared up overnight, after I spent all of Thursday trying to figure out what was wrong.
Several others on this list had the same symptoms, which also cleared up overnight. I'm convinced it was due to slow response from DNS servers, when sendmail was doing a reverse dns lookup. Whenever my sendmail server cannot contact the DNS servers provided by our ISP, we cannot pop at all to our internal mailserver, getting an infinite timeout. As soon as the DNS is back, the pops fly. We, too, use static ip addresses to point to the pop3 mail server. Some others on this list had problems with slow login using telnet/ssh, etc. These, too, would be due to DNS issues. My ISP denies all knowledge of any problems whatsoever. Tom Bentley [EMAIL PROTECTED] ----- Original Message ----- From: "Eddie Strohmier" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, January 18, 2002 8:35 PM Subject: RE: pop3 and imap suddenly very slow > Tom: > > I was curious if your login issues with your mailserver had resolved > itself as mine did the following day? > I have 2 windoze that pop of my RH 6.2 sendmail 8.11.6-3 server and are > using Outlook and Outlook Express. > They were taking over one minute to pop and a time out would occur > unless you upped the time allowed for > a pop with I think was normally preset at 1 minute. Every issue on my > problems, (ftp, telnet, Samba, ipop) all > spontaneously cleared up by about 10 PM that evening according to my > viewing /var/log/maillog. It was definitely > not a DNS issue with me as I was poping with a IP entry in Outlook and > Outlook express. I am betting it is > a windoze issue but not sure as I have nothing to confirm it. > > > Thanks, > > Eddie Strohmier > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > On Behalf Of Tom Bentley > Sent: Thursday, January 17, 2002 4:10 PM > To: [EMAIL PROTECTED] > Subject: pop3 and imap suddenly very slow > > > Help! My formerly functioning (beautifully) mail server is being > *extremely* slow of a sudden, taking over a minute between connect and > authorization. This is RH 7.2 with sendmail-8.11.6-3 and imap-2000c-15. > > The clients are MS Outlook Express -- these I can extend the timeout to > 2 minutes, at which point it works -- and MS Outlook 2000 -- which I can > extend timeout for receiving, but times out trying to send. Netscape > has same problems. Mail arrives at the server from outside with no > problem, and goes straight into /var/spool/mail/username. > > I've tried re-installing the imap.rpm. I have tried removing the > "log_on" lines in /etc/xinetd.d/ipop3. I have tried putting entries for > each client in the /etc/hosts file. I've changed Timeout.ident to 1s in > /etc/sendmail.cf. Have stopped and started sendmail uncounted times. > Have cleared everything out of /var/spool/mqueue. > > I have < 100 clients who use the server. top reports 98% idle cpu, and > 359meg mem free. df reports plenty of free space on all mounts. DNS > appears to work fine (nslookup responds instantly) > > What could have gone wrong (suddenly--like overnight)? > > > ----- > Tom Bentley > [EMAIL PROTECTED] > 802-872-5525 > > > > _______________________________________________ > Redhat-list mailing list > [EMAIL PROTECTED] > https://listman.redhat.com/mailman/listinfo/redhat-list > > > > > _______________________________________________ > Redhat-list mailing list > [EMAIL PROTECTED] > https://listman.redhat.com/mailman/listinfo/redhat-list _______________________________________________ Redhat-list mailing list [EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
