Scott, Thanks for the detailed reply! I think it is a dynamic IP problem - I dug further into my log and AOL is doing the same thing, and actually states that it rejects dynamic IP addresses.
Victor -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of R. Scott Perry Sent: Wednesday, December 24, 2003 10:38 AM To: [EMAIL PROTECTED] Subject: Re: [IMail Forum] smtp access denied... >I m getting access denied sending email to various hosts, but I m not on >any blacklists and not an open relay. This is the log snippet: One possibility is that they are rejecting your E-mail because you have "client" in your reverse DNS entry -- some overly protective sites are rejecting all mail from any IP that has a reverse DNS entry that they think *could* be a residential or dynamic IP. I believe I've seen a file someone posted that they use that checks for "client". It's an unfortunately side-effect of spam. >SMTP (00DA0002) Info - Found netzero.net in DNS Cache >SMTP (00DA0002) Connect netzero.net [64.136.28.83:25] (1) Here's the first sign of a problem on the IMail end -- 64.136.28.83 doesn't appear in netzero.net's MX records. That would first lead me to believe you are the victim of the IMail "Using-the-A-record-instead-of-MX-record" bug. But, it doesn't appear in the A record either! Checking again, it does appear in the MX record. So it looks like they are switching IPs, or playing funny routing games (returning different IPs to different requesters). That would immediately aim the blame at them ("guilty until proven innocent"). >SMTP (00DA0002) 550 Access >denied...1fd94df0a970a17929fdc9d0c9652da43135384579c1340485edf4ed9489dd 54f46d4040897d... This just means that they do not want your mail. I tried connecting from here, and they rejected it. http://www.dnsreport.com/tools/[EMAIL PROTECTED] shows that the DNSreport.com site can, however, connect to their mailserver. So there definitely is a problem at their end. Most likely, they don't want to receive mail from large parts of the Internet. >Is it the private IP that s killing me or the fact that the public one is >dynamically assigned? I m publishing the SMTP service using ISA Server. The private IP won't hurt you (nobody will ever see you as connecting from your private IP). If your IP is dynamically assigned, however, that could be the problem -- many people intentionally block such E-mail (as opposed to the people accidentally blocking E-mail that they think is dynamic but is not). In this case, you'll either need to negotiate with them to accept your mail, route through your Internet provider's mailserver (you can easily do this for the one domain by adding a HOSTS file entry pointing to the IP of your Internet provider's mailserver), or just not send them mail. -Scott --- Declude JunkMail: The advanced anti-spam solution for IMail mailservers. Declude Virus: Catches known viruses and is the leader in mailserver vulnerability detection. Find out what you've been missing: Ask about our free 30-day evaluation. --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] 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/
