There's been some confusion around this requirement from T-Online for a while now, and it seems to be unevenly enforced. And perhaps not even clearly defined.
Couldn't hurt if you want to reach out to t...@rx.t-online.de and ask for clarification. Like I did about their filtering over all. I don't want to be the only one who nibbles them to death with questions. They did respond to me and answer my questions, though it took a bit of back and forth for them to understand that I was asking about policy and not specifically asking for help with any particular IP address. Cheers, Al On Thu, Jun 18, 2020 at 11:03 AM Michael Peddemors via mailop <mailop@mailop.org> wrote: > > On 2020-06-18 3:57 a.m., Andreas Bueggeln - NOC - Profihost AG via > mailop wrote: > > - the ptr to the server ip hast to resolve to the customer domain and > > vice versa > > But they need to do a more sophisticated PTR <<>> A record matching, to > handle multiple PTR records.. > > > - the mails are not allowed from a cloud vm host > > Tough policy, but given the state of some of them out there, > understandable when frustration reaches a certain point.. > > Reputation services help here, so that at least the poor legitimate guy > in the middle of a bunch of bad actors has some chance, eg they already > paid a year in advance for their hosting plan ;) > > And there ARE some good cloud providers out there.. maybe some people > might argue few and far between.. > > But it does hit the bad cloud providers in the pocket, which might help > to clean up bad practices which allow bad actors to flourish.. > > > - the web pages of the domain must have an correct imprint > > This is one that people forget about, and I agree with.. And I wish I > could find the old MAAWG recommendations on this to quote, but if you > have a PTR record of server.domain.com, there BETTER be a URL for > domain.com that answers, and has contact information of the operator. > > And end user doesn't know about 'rwhois' to check ownership and/or > validity, or to report a complaint regarding and problems related to > domain.com, they simply visit the site, looking for contact information. > > I don't blame anyone says that if you want to send them email, you need > to provide transparency. > > > > -- > "Catch the Magic of Linux..." > ------------------------------------------------------------------------ > Michael Peddemors, President/CEO LinuxMagic Inc. > Visit us at http://www.linuxmagic.com @linuxmagic > A Wizard IT Company - For More Info http://www.wizard.ca > "LinuxMagic" a Registered TradeMark of Wizard Tower TechnoServices Ltd. > ------------------------------------------------------------------------ > 604-682-0300 Beautiful British Columbia, Canada > > This email and any electronic data contained are confidential and intended > solely for the use of the individual or entity to which they are addressed. > Please note that any views or opinions presented in this email are solely > those of the author and are not intended to represent those of the company. > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop -- Al Iverson // Wombatmail // Chicago Song a day! https://www.wombatmail.com Deliverability! https://spamresource.com And DNS Tools too! https://xnnd.com _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
