Thanks for your answer thedaver!
This is what I am saying to my clients, that the problem probably is from the other part, but receivers said that they don't have any problem with other people sending them emails, the only one who can't send them emails are my clients.
I am very lost with all...
Hi to all!
I am using qmail as mail server in a Plesk control panel.
My problem is that one of my clients can't send emails to a specific domains, but to other domains they don´t have any problem.
They receive an error message like this:
************************************************
Hi...
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