Guessing this ?
https://www.nbcnews.com/politics/white-house/trump-administration-tests-power-email-every-federal-employee-rcna189126
On Wednesday, 22/01/2025 at 10:09 Michael via mailop wrote:
Not much notice.. that's today.. but if not sharing the sender
details,
was this simply for 'compl
It appears that Fehlauer, Norbert via mailop
said:
>
>Thanks. So, if a domain has correct defined mx records only those can be used
>and if they are not reachable for any reason there should
>never be an attempt to reach the implicit MX RR of the domain.
That is correct, although since this is
Yes thats the only reason I could think of, but unfortunately this is not the
case. The sender tried to deliver a normal mail from his mta. I would guess
that his firewall or DNS wasn’t working correctly, like Stuart said.
Regards
Norbert
Von meinem iPhone gesendet
Am 28.01.2025 um 19:50 schrie
On Tue 28/Jan/2025 18:49:01 +0100 Fehlauer, Norbert wrote:
Hi,
Thanks. So, if a domain has correct defined mx records only those can be used
and if they are not reachable for any reason there should never be an attempt
to reach the implicit MX RR of the domain.
Correct.
The reason I'm as
Hi,
Thanks. So, if a domain has correct defined mx records only those can be used
and if they are not reachable for any reason there should never be an attempt
to reach the implicit MX RR of the domain.
The reason I'm asking is I got NDRs from external senders (a few days apart
from each other)
On 2025/01/28 16:55, Fehlauer, Norbert via mailop wrote:
> Hi,
>
> if a domain has no mx record than a fallback to A/ for the domain is
> possible. Is this fallback only to happen when no mx record exists for the
> domain or can this fallback happen when no connection to the mx defined
> se
On Tue, Jan 28, 2025, Fehlauer, Norbert via mailop wrote:
> if a domain has no mx record than a fallback to A/ for the
> domain is possible.
It's not just "possible", it's required to check.
> Is this fallback only to happen when no mx record exists
Yes. See RFC 5321.
5.1. Locating the Ta
Hi,
if a domain has no mx record than a fallback to A/ for the domain is
possible. Is this fallback only to happen when no mx record exists for the
domain or can this fallback happen when no connection to the mx defined servers
is possible? I would "guess" that it only should happen if ther
