Justin Mason wrote ... (9/22/2008 11:29 AM): > In fairness -- if you drop mail with no rDNS, you are dropping 3.6% of > legit email in general, going by the test results for our RDNS_NONE > rule... ;) > > --j. >
Thanks for that stat Justin. I was always curious what others were seeing here. As you know, many major ISP's like AOL have similar policies to not accept email from IP's with no PTR record. For us, it blocks well over 50% of spam right out of the gate, with very little to no false positives. (nowhere close to 1/10th a percent, much less the 3+ percent you cite). We have more issues with RBL and URIBL issues than no PRT records... those they too are extremely minimal. That said, you would think a company making their living selling antispam software/devices would understand the importance of rDNS records and other RFC rules. It would appear once you sign up and their email is blocked, you can not edit your own site information nor ask for another confirmation email. I have sent the following message on to Barracuda: I filled in their support form, and got an email back asking to respond to [EMAIL PROTECTED] Let's see how they respond. ------------------------------------------------------------------------ *From:* Dave Koontz *Sent:* Monday, September 22, 2008 11:56 AM *To:* [EMAIL PROTECTED] *Subject:* RE: Thank you for contacting BarracudaCentral.org I just signed up over the weekend for your new BRBL service. I never got a confirmation email (primary email [EMAIL PROTECTED] ). >From the Apache SpamAssassin list, it looks like your confirmation server sending emails has no rDNS, so like many organizations our server does not accept such messages. I have tried to add your sending IP 216.129.105.40 to our whitelist, but if I try to sign up again, it say's it already setup. There is no link to EDIT our settings or ask for another confirmation email. Please advise. THANKS! PS: It looks rather bad when an AntiSpam company like yourself doesn't follow RFC and setup proper rDNS entries!
