can anyone help me we are getting emails back when our staff sends to few domains as unkown users.
This problem is comming since we installed firewall and since i am not sure how to solve for temp solution i have keyed the ipaddress and domain name in system32/drivers/etc hosts file and it worked fine for other domains but one domain fails even i specify in the hosts.
when i do nslookup my dns can resolve the correct ipaddress's but still its bounce back
Unfortunately, the version of IMail you are running does not report the reason for the bounce. You'll need to either check the IMail SMTP log file, or use our free BounceFinder program (at http://www.declude.com/tools ) to find out why it bounced. Most likely, they are blocking you for some reason. It takes several seconds to connect to them, so they are likely running spam tests immediately when you connect.
-Scott
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