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Rejected - TRUSTmanager

Posted: Thu Mar 16, 2017 1:25 am
by Sarem
Hi everyone,

i have a problem, when I try to send mails to a specified mail server.
We have an /27 IP range and I have tested multiple IP addresses and get the same problem.

<[email protected]>: host[] said: 550 5.7.1
<[email protected]>... Rejected - TRUSTmanager (in reply to MAIL
FROM command)

I think, it's a blacklist problem. Have You any idea?

Best regards

Re: Rejected - TRUSTmanager

Posted: Thu Mar 16, 2017 1:54 pm
by lisati
It is possible that the recipient's email provider is using a filter called "TRUSTmanager" - you might need to contact the recipients by other means and ask them why or to ask them to whitelist you.

The good news is that the IP address in the rejection message shows "clear" on the blacklists checked by the WhatIsMyIpAddress blacklist check page.

A check at showed a listing at RFC-clueless, which it seems to have inherited from its predecessor, the now closed RFC-ignorant list.