I haven't checked the email queue in a few days - but the last time I checked it was fine.
Yes, the server can do DNS lookups. There are some emails that are going out, but it seems like the queue goes from 540 down to 532 emails, and then fluctuates, but never goes down to normal.
We also subscribe to a blacklist service - and I've also checked your site, we're not on a blacklist.
I haven't seen a problem yet up until today.
Also - I rebooted the machine, the emails are going out slowly, but there is a steady 532 emails in the queue.
Can you suggest anything else?
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by: Syngin9Posted on 2008-02-11 at 11:22:28ID: 20869263
Hmm, are these all legitimate emails?
(its the form at the top left)
How often do you check the queue?
Does the server make use of SPF records and Domain keys? (AOL and Yahoo are becoming heavy sticklers for those)
I'd check to ensure that the server can do DNS lookups too. That would stop remote emails from going out as well. Was your test email sent to a local or remote user?
Also, check your server's ip here to ensure its not blacklisted:
http://www.senderbase.org/
One time, as a last resort, I did a server reboot to fix an otherwise unfixable queue error and the emails just started flying out. Not something I would normally recommend but its a good fix for a large number of possible causes of a problem like that.