Help with mxtoolbox.com SMTP hostname not valid

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bajlek
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Help with mxtoolbox.com SMTP hostname not valid

Post by bajlek » 2018-06-07 09:10

Hello, can someone please help me?
I want to know how to fix: "SMTP Valid Hostname - Reverse DNS is not a valid Hostname" - please see image on Unsee.cc
I cannot change hostname or domain...

Can someone help with fix this issue?


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