Re: .forward MDA fails, "mail.local: may only be run by the superuser"

misc@ is really not the right place for bug reports. Use bugs@, or opensmtpd
has its own lists: https://opensmtpd.org/list.html

On 2020-02-01, Andreas Kusalananda Kähäri <andreas.kahari@abc.se> wrote:
> Hi,
>
> With the latest snapshot on amd64 (6.6 GENERIC.MP#627), using a "|"-line
> in one's ~/.forward makes delivery of mail fail with
>
> Feb 1 08:53:53 pooh smtpd[72575]: d9abac6b3d904e13 smtp connected address=local host=pooh.prefix.duckdns.org
> Feb 1 08:53:54 pooh smtpd[72575]: d9abac6b3d904e13 smtp message msgid=8698cb82 size=1824 nrcpt=1 proto=ESMTP
> Feb 1 08:53:54 pooh smtpd[72575]: d9abac6b3d904e13 smtp envelope evpid=8698cb8264606654 from=<> to=<kk@pooh.prefix.duckdns.org>
> Feb 1 08:53:54 pooh smtpd[72575]: d9abac6b3d904e13 smtp disconnected reason=quit
> Feb 1 08:53:54 pooh mail.local: may only be run by the superuser
> Feb 1 08:53:54 pooh smtpd[72575]: d9abac6d77a45212 mda delivery evpid=8698cb8264606654 from=<> to=<kk@pooh.prefix.duckdns.org> rcpt=<kk@pooh.prefix.duckdns.org> user=kk delay=0s result=PermFail stat=Error ("mail.local: may only be run by the superuser")
> Feb 1 08:53:54 pooh smtpd[19621]: warn: queue: no return path!
>
> The mail is then lost.
>
> I have
>
> pooh % cat .forward
>|/usr/local/bin/fdm -a stdin fetch
>
> where "stdin" is a simple mail "account" in fdm(1) that takes messages
> from standard input, filters it, and sorts it into the correct Maildir
> inbox. For me, this only affects messages originating from the local
> system (e.g. crontab output etc., but also messages for root as my root
> user is aliased to my ordinary user through /etc/mail/aliases).
>
> I understand that this may well be by design rather than a bug. How
> may one use a personal MDA from ~/.forward nowadays, or is that option
> completely unsupported from now on?
>
> Regards,
>