Re: [exim] Replies to mailer-daemon@

On 04/12/2018 07:48, Marius Stan via Exim-users wrote:
> The customer might need some more info and hits reply to the email
> above. Only the webshop's mailbox happens to be full, so the customer
> eventually gets the following bounce from my mail server, with the
> sender set as mailer-daemon@???:

If by "sender" you mean the envelope from, you're doing it wrong.

However, if (as is probable) you mean the header From:
(and there's no header Reply-To:) there is very little you can do
about stupid customer MUAs or stupid customers.
--
Cheers,
Jeremy