E-mail issue RCP host


Today I had a exchange server all the sudden that stopped sending and receiving e-mail and nothing has changed on it. When I attempt to send e-mails to it I am getting the following NDR message:

    SMTP error from remote mail server after RCPT TO:<staff@ldomain>:
    host mail.domain.com [IP Address]:
    553 sorry, that domain isn't in my list of allowed rcpthosts; no valid cert for gatewaying (#5.7.1)

I have checked the server to be on a blacklist and it appears not to be on a black list. I have also rebooted the server and verified that DNS is working correctly also ran a virus scan on the system and nothing was found. Any suggestions?
Who is Participating?
TyBeattyConnect With a Mentor Commented:
If it is Exchange 2007 have a look at the accepted domains on the Hub transprt tab and make sure the domain did not get removed somehow.

This will cause the error you are seeing.
What version of Exhange?
aandoAuthor Commented:
Come to find out it is a issue at the hosting with gmail apps.
Oh very good.  Well then GMail can fix their broke stuff!!   lol

The place I showed you is the only place you would find that in Exchange so I figured it was that or nothing..  lol
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.