GMAIL - Relay access denied

Hello Expert Exchange community,

Would appreciate any input on the following issue:

Email gets bounced back with the "554 5.7.1 Relay access denied" when sent from gmail.com to our domain.
Our email hosted internally on Exchange 2010 server behind SoniWall Email Security 300 appliance.

Has tested email delivery from multiple domains with no issues.

Email gets delivered with no problem when tested with TELNET connection to Sonicwall box.

Thank you
TWM-TECHS
TWM_TECHSAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

carlmdCommented:
Is the bounce from the Sonicwall or the Exchange server?

Are you trying to use your Exchange server to forward mail from gmail via smtp?
0
TWM_TECHSAuthor Commented:
Thanks for the reply Carlmd.

Based on the error the email gets rejected by the Sonicwall (mail.bluesourcecan.com) (see the bounced back message in the attachement).

I'm not forwarding email from gmail. it's jut non of email from gmail gets delivered to our domain.
error.jpg
0
carlmdCommented:
Did this ever work with gmail? If so, what if anything has changed, either on Sonicwall config or other?

Is the gmail email being rejected when sent by any sender, or just this one person?
0
TWM_TECHSAuthor Commented:
Yes,  messages sent via gmail were last received as late as March 3rd.

all messages sent by gmail get bounced
0
carlmdCommented:
Did anyone change any of the rules on the Sonicwall when this started?

It is most likely that is the cause. Even if you don't think they changed I would look for a rule that blocks gmail (in the headers or from).
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Email Protocols

From novice to tech pro — start learning today.

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.