Trouble sending email to yahoo

[Craig White]

On Mon, 2008-03-03 at 23:53 -0700, Bryan O'Neal wrote:
> I have two mail servers (different domains) I own plus two more
> outside email addresses and non of them can send to @yahoo.com
> addresses for several days.  Anyone else having trouble?
>  
> The domains are cornerstonehome.com, harriscapitalmortgage.com,
> hotmail.com, and loopadvertising.com.
>  
> The first two are both servers I own, different IP's same router all
> on a TWTC network.  The next one is obvious... Hotmail, and the third
> is operated by GoDaddy.com.  No dice with any of them.  The first two
> are in good health and can send to other addresses just fine, the MTU
> accepted by yahoo is the same as my default max MTU and I can trace it
> down in 7 hops, so it does not seem like a connectivity issue.  I
> don't get bounces, I just can't deliver.
----
when troubleshooting sending issues, sometimes doing an smtp session to
the problem connection via telnet reveals the problem.

Craig