Automatically moving marked mails?

[Adam Tauno Williams]

>> Ian Eiloart wrote, at 07/09/2009 05:39 AM:
>>> Except that the sieve server ought to be on the border MTA, so that the
>>> user can tell the server to reject the message at SMTP time.
>> That's not feasible for mail with multiple recipients.
> It is if your rule is to reject all email from a specific sender.

No, because the MTA either accepts or rejects a message [in  
connection].  If a message is sent to userX and userY and userX has  
SIEVE set to reject the message and userY does not then the MTA has to  
receive the message in order to deliver it to userY.  And the MTA  
would have to check every recipient's SIEVE script.  Then what about  
delivery to an alias that expands to multiple users?  Mail delivery  
just isn't that simple.