Is it possible to configure MTA Postfix server to bypass UCEPROTECTL3 rejection ? Example when my server connect to recipient server then I get information: Diagnostic-Code: smtp; 554 5.7.1 You are not allowed to connect.
Ok I know to I can set up relay postfix on external ( unbanned ) server. Ok then I will skip blacklist. But then all my emails will be sending by another relay server not selectively. Is it possible to selectively change the relay server taking into account rejections caused by blacklist ? Example when my server get 554 error then it use another relay server which is clean.
My server is free from spam but UCEPROTECTL3 block all OVH IP :(