[NTLUG:Discuss] AOL Rejecting Mail and Sendmail

[Ed Coates]

Quoting Chris J Albertson <alb at chrisalbertson.com>:

> I had the same problem. AOL decided to block my ip address a few weeks back.
> So,
> I went about trying to figure out why. They do some really nice portscanning
> of
> servers that send them email.
> 1) They don't like open relays. (Obvious here. Most NTLUGers wouldn't do
> that
> anyway)

Nope.  Not being a relay.  Have tested that one myself.

> 2) They don't like open proxies. (That one got me. Squid was running on an
> open
> port. Nice eh?)

Nope.  I don't run squid or any other proxy.

> 3) They don't like people who send them a lot of emails for user accounts
> they
> don't have. I believe they have this set at about 90%. Meaning, if 11% of
> your
> mailings are "recipient unknown," you end up on their blacklist.

Nope.  I don't have too many friends that even use AOL.


> 4) They subscribe to mail-abuse.org RBL. Check there for your listing.
> 
> You can go to this link: http://postmaster.info.aol.com/
> They will tell you how to get yourself removed. Start praying you're not on
> the
> mail-abuse.org list. If you are, you're on your own there. I've not gotten
> on
> that one yet. Don't want to be either.
> 
> In a nutshell, you can ask aol.com to scan your ports again and let you know
> where you fit. If you have fixed everything when they re-scan you, they'll
> let
> you play again. Worked for me.

Seems like I now fall into a new category.  Here's what I get back.

<<< 550-The IP address you are using to connect to AOL is an IP address owned
<<< 550-by ATTBI/Comcast and is either open to the free relaying of e-mail,
<<< 550-is serving as an open proxy, or is a dynamic (residential) IP address.
<<< 550-AOL cannot accept further e-mail transactions from your server until
<<< 550-either your server is closed to free relaying/proxy, or your provider
<<< 550-removes your IP address from their list of dynamic IP addresses.  For
<<< 550-additional information, please visit http://postmaster.info.aol.com
<<< 550-or contact your network support organization at
<<< 550-security_ldc at cable.comcast.com.
<<< 550 Goodbye

Looks like they don't like my reverse lookup dynamic address.

Thanks for the info though.

Ed

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