> On Sep 8, 2020, at 11:34 PM, Greg Sims <webmas...@raystedman.org> wrote:
>
> Pardon my next question in advance. Will outlook.com reliably relay
> the message to recipients that do not have an outlook.com domain?
No. They'll reject "foreign" recipients. There are work-arounds,
but you should not go there. If your traffic includes multi-recipient
mail do not implement this "recipient restrictions" filter .
However, it can be safely added via:
smtpd_data_restrictions =
check_recipient_mx_access ...
Which will only apply to single-recipient messages. Multi-recipient
messages (including those with some "outlook.com" recipients) will
bypass the filter, because "data restrictions" only expose a recpient
to test when the message has exactly one recipient.
--
Viktor.
