[Dovecot] disabling mail delivery for a user

[Charles Marcus]

On 2010-02-02 11:30 AM, Frank Cusack <frank+lists/dovecot at linetwo.net>
wrote:
> On February 2, 2010 9:57:12 AM +0100 Steffen Kaiser
> <skdovecot at smail.inf.fh-brs.de> wrote:
>> IMHO:
>> If you want to avoid backscatter, you must disable the user in the
>> MTA, in order to reject the message during "rcpt to" command or at
>> least in DATA.
> 
> I don't care about backscatter.

You should - if you are a backscatter source, you *will* be blacklisted,
sooner or later.

> There's no reason anyone should see
> significant backscatter these days; it's pretty much a solved problem.
> 
> (watermark all outgoing email and look for that watermark on DSN reports)

Yes, that helps you avoid *other* people's backscatter, but that wasn't
the point of the warning: don't accept-then-bounce. If you're going to
bounce it later, reject it at smtp time.

-- 

Best regards,

Charles