The mail log did say: Nov 30 12:17:08 mx3 postfix/smtp[220173]: EEF9C9F07F: host mx01.t-online.de[194.25.134.72] refused to talk to me: 554 IP=xx.xx.xx.xx - None/bad reputation. Ask your postmaster for help or to contact t...@rx.t-online.de for reset. (NOWL)
I use the contact from the returned message. Thanks > > Hi, > > I remember writing to TOL on behalf of a .net organisation. And request they > whitelist the new IP of their server. That worked. > > The address should be in your logfile with the reject. > > Did you use that or some other channel to talk to them? > > So many companies ignore basic things like abuses. Or in this case invent > their own whitelist. > I bet nothing of all this gets them on a RFC-ignorant style list, where they > belong IMO. > > Greets, > Ludi > > -----Ursprüngliche Nachricht----- > Von: owner-postfix-us...@postfix.org <owner-postfix-us...@postfix.org> Im > Auftrag von Henry R > Gesendet: Mittwoch, 30. November 2022 03:09 > An: postfix-users@postfix.org > Betreff: how to deal with t-online's blocking > > Hello, > > My mailserver once had some issues on sending messages to different > providers. I have contacted the provders and most of them were kind enough to > resolve the blocking issue. Thanks for them (ATT, GMX, 1and1 etc). > > But t-online.de keep blocking me. I have contacted them twice and got the > same answer: > > We only allow evidently commercial or similar operators to connect to our > mailservers. So, as a private user please use an SMTP relay or e-mail gateway > of your hoster or ISP, that you can use as part of your contract with them. > Their support will surely help you to configure your system accordingly. > > That's so strange policy to permit only commercial company to send messages > to them. > But there are many small companies/org who have their own mailservers, which > can't send messages to t-online directly. > > How do you think of this behavior? > > Thanks. >
