on 12-15-2008 8:15 AM Sean Carolan spake the following: > I'm a bit baffled by this problem. Maybe there's a sendmail guru out > there who can help me out here. We have some end-users who need to > receive system-generated mail that originates from a java-based > application on our network. The java app sends the mail through our > sendmail cluster, which then sends the email on to the end-user over the > Internet. The size of the emails can range from a few kb up through > around 2Mb in size. > > The mail logs show that these emails are typically delayed for up to 24 > hours, sometimes longer. It appears that several attempts to deliver > the email are made, with each unsuccessful one showing "Deferred" status > in the maillog. After several hours of failed attempts the mail finally > goes through successfully. Here is a typical entry (customer name > redacted): > > exmx1 : Dec 14 05:28:39 exmx1 sendmail[31574]: mBDIYhEa031574: > to=<customer@xxxxxxxxxxx > <mailto:customer@xxxxxxxxxxx>>, > delay=00:00:00, xde > lay=00:00:00, mailer=esmtp, pri=41874, relay=mail.example.com > <http://mail.example.com>., dsn=4.0.0, stat=Deferred > > Unfortunately there is no reason given for the "Deferred" status such as > "Server unavailable", etc. > > Do you have any ideas how I can begin to troubleshoot this? > Does the machine have good dns resolution? Are the clocks synced to a proper time.. (IE... local time is +8 but the clock is actually -8). GMT is OK as long as the box knows that is its timezone. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!!
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