Re: [exim] Autoreply empty mail from

> From: Timur <timur @ alcopack.de>

> # exim -be '$primary_hostname'
> says:
> mail.domain.com (This is my mail host)
>
> from smtp transport config:
> helo_data = mail.domain.com
>
> DKIM generated for domain.com with selector mail
> There is DNS record for domain:
> mail._domainkey.domain.com. TXT?? v=DKIM1; k=rsa; p=....
>
> Whats wrong?

Your email to [exim-users] had the domain alcopack.de in "From:" header line
(I'm talking not about envelope-from also known as MAIL FROM).
alcopack.de and mail.alcopack.de resolve to different IP-addresses.
Your Exim is on mail.alcopack.de, right?
You have DMARC record for alcopack.de but not for mail.alcopack.de:

~ $ dig +short _dmarc.mail.alcopack.de txt
~ $ dig +short _dmarc.alcopack.de txt
"v=DMARC1; p=none"

mail.alcopack.de (in HELO) and alcopack.de (in DMARC and DKIM)
are different domains.

Also, make sure that if $sender_address_domain is empty,
your Exim config uses correct domain for DKIM signing - exactly same domain
as in DMARC.