Re: [exim] check_srv mx exists

On 2015-01-21, Jeremy Harris <jgh@???> wrote:
> On 21/01/15 11:18, Klaus Ethgen wrote:
>> There are many legit senders without MX
>> record. That is fully ok and there are mail admins out there that do not
>> see any reason why to add A and MX with the same content.
>
> How do they receive bounces?

by the A, or CNAME record, (AAAA too but not all hosts support
delivery to IPV6 yet)

https://tools.ietf.org/html/rfc5321#section-5.1

--
umop apisdn