Wietse Venema via Postfix-users:
> Matthew Kitchin via Postfix-users:
> > Hey all, former longtime user, but been away from Postfix for about 13
> > years.
> > I'm migrating a datacenter to Azure. We have a variety of things
> > (websites, copiers, monitoring apps, etc.) that send emails that don't
> > need to be replied to. In an Azure environment, we have to route these
> > through Azure SMTP services and they have to come from a designated
> > address. These emails routed to Azure SMTP have to be from
> > f...@example.com. Postfix came to mind as the ideal solution. This
> > setting does the trick.
> > sender_canonical_maps = static:f...@example.com
> > The problem is it seems to strip out the display name too. I've tried
> > various options with
> > sender_canonical_classes
> > and it doesn't seem to help.
>
> Sorry, those tweaks will not affect the display name, because Postfix
> canonical mapping affects only the emil address portion of a message
> header, not the display name.
>
> If something strips out the display name, then that happens with
> Postfix header_checks, with some non-Postfix content_filter, miklter,
> or smtpd_proxy_filter, or it happens outside of Postfix.
>
> > If I remove the rewrite, and actually send from f...@example.com
> > everything is great. Any idea how I can rewrite the sender address
> > to f...@example.com but leave everything else alone so mail clients
> > will still show the display name? I hate that Azue makes us do
> > this given we have already authenticated, but that is their
> > requirement.
>
> You will need to demonstrate that display names are stripped after
> a message arrives in Postfix, and before the message leaves Postfix.
>
> /etc/postfix/main.cf:
> header_checks = pcre:/etc/postfix/from_header_checks
> smtp_header_checks = pcre:/etc/postfix/from_header_checks
>
> /etc/postfix/from_header_checks:
> /^(From:.+)/INFO $1
Correction: there needs to be a space before 'INFO'.
/^(From:.+)/ INFO $1
> This will log the From: header upon arrival and upon departure.
Wietse
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