[NSRCA-discussion] Road Runner e-mail delivery problems

[Ron Van Putte]

Thanks Tom.

I hope somebody (not me) can understand that stuff (besides Tom).   
I'd hate to think he was all alone on this.

Ron VP

On Oct 23, 2008, at 10:56 AM, Tom Simes wrote:

>
> For those on rr.com (who can't get this e-mail, but may be  
> following via
> the web archives), I've opened ticket ID [security.rr.com #55518] with
> them to investigate why their mail servers are deferring mail delivery
> from the NSRCA list server to RR customers.  For those familiar with
> e-mail and SPAM control at the ISP level, the list server isn't on any
> DNS RBL lists or anything like that.  The problem is that for some
> reason the RR.com mail servers cannot resolve the list server IP  
> address
> back to a hostname so they are refusing to accept e-mail.
>
> Looking at the logs, the problem started early yesterday morning (Oct.
> 22nd).  The failures look like this:
>
> $ telnet 75.180.132.244 25
> Trying 75.180.132.244...
> Connected to cdptpa-smtpin02.mail.rr.com.
> Escape character is '^]'.
> 421 4.7.1 - Connection Refused.  Cannot resolve PTR record for
> 209.112.194.3 Connection closed by foreign host.
> $
>
> Tom
>
> ======================================================================
>    "Z-80 system stack overflow.  Shut 'er down Scotty, the system's
>          sucking mud" - Error message on TRS 80 Model-16B
>
> Tom Simes                                       simestd at netexpress.com
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