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
This will log the From: header upon arrival and upon departure.
Wietse
Wietse
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