First thing I would do is "tail /var/log/maillog | grep sendmail" (or grep the name of your mta) and see how long it takes for the mail to be dumped into the user's mailbox.
If the message seems to be processed immediately, then cat the user's inbox to confirm it's really there. If it is really there, then run your POP client and see if the message is delivered without the delay. If and only if the message is there should the delay point to the POP software. Suspects in this should be locking on the inbox, or perhaps locking on the inbox from other IMAP or POP processes. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:C-CLIENT-owner@;u.washington.edu] On Behalf Of > Johnathon - East Coast Computers > Sent: Friday, October 18, 2002 1:41 PM > To: [EMAIL PROTECTED] > Subject: POP Mail Delay > > > I hope I have subscribe to the correct list, if not I > apologize for this > email. > > I am setting up a new email server using Linux Mandrake 9.0 and > IMAP-2001A-9MDK which I believe is UW-IMAP. I have been > having a 15-20 > second delay from the time I pop may mail to the time the > server sends > the mail. Here is my senario: > > I have a machine running MD 9.0, Postfix, and IMAP-2001A which > takes care of my IMAP and POP needs. My network consists of 1 public > class A IP address: 64.83.48.210, which is fed into my router. My > private IP range is 192.168.... I have TCP/IP ports 80, 25, > 110 and 143 > port forwarded to my new server (192.168.1.55) On a > different machine > on my internal network I have a mail client set up for pop. I used > 192.168.1.55 for both the pop server and smtp server > settings. No delay > sending or receiving. When I change the pop and smtp settings > to: mail.eastcoast-pc.com, no problem sending but receiving > take approx > 15-30 seconds delay and then it give my mail client mail or nothing > respectively... Seems like something is timing out. > Someone told me that DNS maybe causing the delay. If > so, what do I > need to do to get this fixed? Thanks for the help everyone. > > Thanks, > > -- > > > Johnathon B. Allread > A+, MCP, MCSA, Linux User > East Coast Computers > 1902 Colley Ave > Norfolk, VA 23517-1613 > http://www.eastcoast-pc.com > Shop - (757) 313-7582 > Fax - (757) 313-7587 > Cell - (757) 235-5629 > > > -- > ------------------------------------------------------------------ > For information about this mailing list, and its archives, see: > http://www.washington.edu/imap/c-client-list.html > ------------------------------------------------------------------ >
