yeah that is not right at all since the SMTP server is about 99.9% of the time is not going to be the the reverse of a domain name in the from.
What he probably means is that .100 does not have a PTR at all... may want to check that. J.J. On 11/2/07, Al Musella, DPM <[EMAIL PROTECTED]> wrote: > No - I am not sure about any of this:) > Most of the time I have no problem, then all of a sudden an ISP > will block all of my mail for a few days until I call them and ask to > be removed from their blacklist. These messages are medical related > newsletters that people opt into. Never sent unsolicited. > One tech at prodigy told me I was blacklisted because the reverse > dns didn't match up with the domain name used. He specifically said > that the messages came from my .100, whose reverse DNS is not the > domain name on the FROM field. (.100 is what cold fusion sends the > mail from, .108 is the domain of my web site, .98 is my mail server) > It doesn't sound right to me. They did mention I could pay to > make sure my email gets through. Sounds like they are randomly > blocking email to extort me? Does anyone else get seemingly random > blacklisting? > > > >Al Musella, DPM wrote: > > > The problem is that when you do a reverse dns lookup on the email > > > message, it doesn't come back as the domain name that the mail > > was sent from. > > > I send newsletters from a few websites, and they have been getting > > > rejected by a lot of major ISPs. My spf is set to all mail from the > > > correct ip addres, but the reverse dns entry pops up a reg flag. > > > >Are you sure about that? Mail servers routinely compare the identity the > >mail server presents in its EHLO to the PTR record, but checking the PTR > >of the mail server against the domain in the sender e-mail address is > >extremely rare (not in the last place because the from address <> should > >always be accepted by a mail server). > > > >Jochem > > > > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Get the answers you are looking for on the ColdFusion Labs Forum direct from active programmers and developers. http://www.adobe.com/cfusion/webforums/forum/categories.cfm?forumid-72&catid=648 Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:292584 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
