[Mailman-Users] Who authored the message?

Natu incoming-pythonlists at rjl.com
Tue May 20 04:25:21 CEST 2014

On 05/19/2014 04:49 PM, John Levine wrote:
>> Thank you for your feedback.  I'm most inclined to handle replies based
>> on the needs of the particular list. ...
> No, I mean what will you do when people respond to your synthesized
> names?  At some point you'll get mail at the server for mydomain.com
> for yahoousername-AT-yahoo.com at mydomain.com.  What will you do with it?
> One of the reasons I did the .invalid hack (which you can do with
> essentially the same code you're using) is that it's clear that the
> address isn't deliverable so there's no question of what happens to it.
> R's,
> John

I had previously missed the thread about the .INVALID thing (I'm not on
the developers list).  I have postfix configured so that the smtp server
will return a 5XX response of "No such User".  One difference between my
method and yours is that my mail logs will show that somebody actually
replied to that address where as with yours the reply would stop at the
senders SMTP server.  Not that significant, but it might be useful to
know if users are using those addresses.   I could add something that
will make it clear that the addresses is not emailable, though my sense
is that most users would get that the way it is, especially if they
tried to email it and it failed.


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