Celejar:
> On Fri, 4 Jan 2019 13:19:10 -0500 (EST)
> Wietse Venema <wie...@porcupine.org> wrote:
>
> > Celejar:
> > > Okay, by testing with swaks I've confirmed the suspicion that I broached
> > > in my previous mail: on the problematic system, the rewrite of the email
> > > header 'From: root' is to 'From: <aaaaa...@zoho.com> (root)', which
> > > causes the mail to be rejected by Zoho's server with '553 Relaying
> > > disallowed as @'. On the working systems, the rewrite is to a more
> > > normal 'From: root <aaaaa...@zoho.com>', which Zoho accepts.
> > >
> > > So: is this a bug? Is there some way I can get Postfix 3.1.8 to do the
> > > rewriting the normal way, like 3.3.2 does, or do I just need to upgrade
> > > Postfix?
> >
> > See: http://www.postfix.org/postconf.5.htnl#header_from_format
> > This feature is available in Postfix 3.3 and later.
>
> And I'm using 3.1.8, where the rewriting isn't acceptable to my mail
> provider, and this feature isn't available ;) So I guess I'm stuck,
> unless I can upgrade Postfix?
Can you provide the From: header *before* mail enters Postfix?
Otherwise you will have to update to Postfix 3.3.
Wietse
