On Fri, 4 Jan 2019 15:22:08 -0500 (EST) Wietse Venema <wie...@porcupine.org> wrote:
> 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. I suppose I might be able to look at individual mail sending applications to see what they can do (cron, etc.), but it will probably be simpler and more robust to just try to use a newer Postfix. I can't easily upgrade the version on the current system, since it's running Debian Stable, and the version from Unstable has unavailable dependencies, so I'll probably just run a more recent Postfix on a virtual machine. Thanks for the help, Celejar
