5.7.1 Bounce Back - MDaemon Server

Hi all

We are currently getting a lot of complaints of bounceback emails from our server. It is not for all email addresses, only some but for the ones who it occurs all the time.

The message we receive is:

[213.249.141.122] #<[213.249.141.122] #5.0.0 smtp; 5.3.0 - Other mail system problem 550-'5.7.1 Sorry, message looks like spam or phish to me (OP)'

Open in new window

.

We have disabled both the Spam Filter and AV temporarily and it still occurs.

Cheers
Dom
cbapartnershipAsked:
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.

arnoldCommented:
What are your counter measures are, do you use DNS black lists?

What is your mail server?

The error is a non-standard so it is hard to say what the cause is.

Is the IP reflected yours?
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 Servers

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.