Thank you Jaroslaw. following your suggestion i am giving another try.
> > Dnia 30.11.2022 o godz. 02:08:57 Henry R pisze: > > > > > 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? > > > > This has been discussed a lot on "mailop" list recently. > Yes, they do have a strange policy indeed. Probably no other large email > provider behaves like this. > From the discussion on that list it turns out, that the condition under > which they consider a server to be "commercial" is to provide so called > "imprint" on the website associated with the domain, with full contact > details (your name, street address and telephone number!). After you request > that they unblock your IP, they check manually for existence of that > "imprint", and if it satisfies their requirements, they'll unblock you. > -- > Regards, > Jaroslaw Rafa > r...@rafa.eu.org > -- > "In a million years, when kids go to school, they're gonna know: once there > was a Hushpuppy, and she lived with her daddy in the Bathtub." >