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.
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