Hey Heiko, On 19.10.22 13:33, Heiko Schlittermann via mailop wrote:
A given mailhost (ran privately for smaller entities) can't send messages to T-Online anymore.554 IP=168.119.159.241 - A problem occurred. … The sending IP belongs to a rented host (rented from a major German hoster). The answer he (the owner of that host) got was about like this: (translation by me): Sorry, we only accept messages from proven commercial or similiar servers. Please use the SMTP relay of your hoster or your ISP.
Did you contact T-Online postmasters about this issue or was this just the SMTP error message?
I've been blocked by T-Online in the past, but after discussing things with them assuring that it is a regular mail system, it was unblocked again.
Regards, Thomas Walter -- Thomas Walter Datenverarbeitungszentrale FH Münster - University of Applied Sciences - Corrensstr. 25, Raum B 112 48149 Münster Tel: +49 251 83 64 908 Fax: +49 251 83 64 910 www.fh-muenster.de/dvz/
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