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?
On the server at the A record? If there is no MX record then every MTA
uses the A record to try to deliver the mails.