On Sun, Oct 25, 2020 at 02:46:26PM -0400, Wietse Venema wrote:

> postfix-3.6-20201025 has a preliminary implementation to limit the
> envelope senders that a local user may specify to the Postfix
> sendmail (or postdrop) command. The real work is done in a library
> module, so that similar functionality can later be added to the
> Postfix SMTP daemon.

Nice!  A nit correction and a question:

- Typo: in example:

--- proto/postconf.proto
+++ proto/postconf.proto
@@ -17947,7 +17947,7 @@ address when the '@' and <i>domain</i> part match. </dd>
 <pre>
 /etc/postfix/login_senders:
    # Allow both the bare username and the user@domain forms.
-    /(.+)/ $1 $1...@example.com/
+    /(.+)/ $1 $1...@example.com
 </pre>
 
 <p> This feature is available in Postfix 3.6 and later. </p>

- Question, with "#" as the prefix for numeric uids, how is one supposed
  to create indexed tables with these as lookup keys?  The below looks
  like a comment to me:

    #12345  anonym...@example.com

-- 
    VIktor.

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