Is it the lookup that's failing or the DNS response not getting received? What do the spam logs show
Eric S ----- Original Message ----- From: "Spaminator" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, December 10, 2004 2:38 PM Subject: [IMail Forum] Reverse DNS Issue > Hello, > > Has anyone been having any issues since last week with the reverse DNS lookup connection filtering option? > > I have had large numbers of false-positives reported from our users, and for almost every one when I do a reverse lookup on the mail server manually, I get a response. It seems iMail, for whatever reason, is not working. > > I also did the same reverse lookup on the DNS servers specified in the iMail SMTP settings, and it worked there as well. > > Anyone know of any issues with reverse DNS in iMail? This seems to have started after we deployed 8.14 last week, but I'm not sure. We've used revlookups for many months previous to that and didn't seem to have a problem with reverse lookups failing on IPs that do indeed have PTRs. > > Thanks, and Happy Holidays! > > > > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
