<howard@neteast.com> wrote in message
news:nukop25h4c2rhkjejjdlhrgko7n02mo64h@4ax.com...
> Hello.
>
> I have a difficult and unusual mail rouing problem that I have not
> been able to solve. While I realize this is not exactly the correct
> group to be asking in, from reading the postings you guys are very
> good at solving mail routing problems.
>
> If you'd like to take a crack at it, here is the scenario:
>
> I am a comcast.net user. I have my own domain which is neteast.com.
> The neteast.com domain is parked at EasyDNS (www.easydns.com) which
> also handles my DNS records. For neteast domain email, I have
> mailmaps at EasyDNS that map back to my Comcast email addresses.
>
> I set up Lyris ListManager 9.1 (www.lyris.com) to test out listerv
> functionality.
>
> The listserv works great except it cannot send email from the list to
> either neteast.com or comcast.net addresses. This is true for any
> address in these domains. It can send to every other domain I tested.
>
> Here is a log failure entry for a sample neteast.com recipient:
>
> Wed, 03 Jan 2007 18:33:35 Sending email to: howard@neteast.com
> <-- DNS info available for: neteast.com
> --> Attempting to connect to: neteast.com (205.210.42.52 25)
> <-- Connected to: neteast.com (205.210.42.52 25)
> <-- 220 storm.easydns.com ESMTP spoken here.
> --> HELO mail.neteast.com
> <-- 250 storm.easydns.com
> --> MAIL FROM: bounce-60-8@mail.neteast.com
> <-- 250 Ok
> --> RCPT TO:<howard@neteast.com>
> <-- 571 <c-69-140-35-107.hsd1.md.comcast.net[69.140.35.107]>: Client
> host rejected: dialup/DSL/cable host, please use your ISP's SMTP
> server
>
> Here is a log failure entry for a sample message comcast.net
> recipient:
>
> Wed, 03 Jan 2007 18:33:34 Sending email to: howard100@comcast.net
> <-- DNS info available for: comcast.net
> --> Attempting to connect to: comcast.net (206.18.177.26 25)
> <-- Connected to: comcast.net (206.18.177.26 25)
> <-- 220 alnrmxc19.comcast.net - Maillennium ESMTP/MULTIBOX alnrmxc19
> #122
> --> HELO mail.neteast.com
> <-- 250 alnrmxc19.comcast.net
> --> MAIL FROM: bounce-60-10@mail.neteast.com
> <-- 550 69.140.35.107 blocked by ldap:ou=rblmx,dc=comcast,dc=net ->
> Comcast.net subscribers are not permitted to directly connect to this
> mail server. If you are a Comcast Commercial Services customer and
> need support, please contact support_biz@cable.comcast.com
>
> In theory, all outgoing SMTP traffic from the listserv should be going
> to EasyDNS.
>
> My guess is that Comcast is recognizing my IP address as one of their
> own and is intercepting the outgoing mail and routing it internally.
>
> Comcast says it's not their problem. They fault EasyDNS. EasyDNS
> claims its a Comcast problem.
>
> Does anyone have a solution or a workaround?
>
> Direct replies would be appreciated to howard@neteast.com
>
> Thanks.