Bill Cole via mailop skrev den 2024-07-12 16:13:
Any SMTP client which does not fall back to the A record when no MX
records exists is fundamentally broken.
and here its more fun when domain is nullMX it would be fail to failback
to A/ :)
sendmail -f yourmailaddrhere -bv f...@example.or
On 12Jul24, Bill Cole via mailop apparently wrote:
> > Nearly 1/2 a century later, it's still the case that most mail clients
> > will look for address RRs in the absence of an MX.
>
> Because failing to do so would be ignoring a requirement of the SMTP
> specification.
Yes. Everyone knows this
On 2024-07-11 at 23:35:05 UTC-0400 (Fri, 12 Jul 2024 03:35:05 +)
Mark Delany via mailop
is rumored to have said:
Nearly 1/2 a century later, it's still the case that most mail clients
will look for
address RRs in the absence of an MX.
Because failing to do so would be ignoring a requirem
On 11Jul24, Cody Millard via mailop apparently wrote:
> What is "A RR" ?
Sounds like they're talking about DNS A RRs (Address records).
Circa 1986 the DNS community introduced the MX RR with a view to transitioning
away from
how a mail client would look up an address RR directly for a target dom
On 2024-07-12 10:55, Cody Millard via mailop wrote:
What is "A RR" ?
A resource record.
--
Jeff Pang
jeffp...@aol.com
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What is "A RR" ?
On 7/11/2024 9:07 PM, Jeff Pang via mailop wrote:
As a old email provider, safe-mail.net has even no MX records, but
using A RR for incoming messages. do you know why they design this?
for better anti-abuse control?
Thanks.
--
Cody Millard
https://email.broker
_
It appears that Jeff Pang via mailop said:
>As a old email provider, safe-mail.net has even no MX records, but using
>A RR for incoming messages. do you know why they design this? for better
>anti-abuse control?
Most likely they stumbled around decades ago setting up the DNS, found that
worked
As a old email provider, safe-mail.net has even no MX records, but using
A RR for incoming messages. do you know why they design this? for better
anti-abuse control?
Thanks.
--
Jeff Pang
jeffp...@aol.com
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