On 19.10.22 18:16, Marcel Becker via mailop wrote:
Just like nobody can force you to accept any emails from any sender into your systems, you can not force others either.
Might be true in general, but the t-online.de case is different. They happily do send to any MXable domain. They do not accept all responses to the email their users sent. To me, §7 (1) UWG looks promising — unless t-online.de *knows* it would be accepting replies from the domain their users address, t-online.de *must not* send to that domain (giving their user a clear message that that is on behalf of a t-online.de policy, not the failure of someone else) *or* auto-whitelist the target domain's sending servers as per SPF before relying such an email. But someone needs to file such a case and be prepared to fight this for multiple years, risking a shitload of money ... Volunteers? ;) -kai _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
