Re: Blocking mail from bad places

[Ken Simpson <ksimpson () mailchannels com>]

> > 1) You send bounces from spammers to innocent people, whose
> > addresses have been forged.
>
> This is an SMTP reject, not a bounce.  It's a lethal variety of
> greylisting.
>
> This technique works great to keep spam out of your mailbox.

Inline rejection is a little dangerous for mailing lists (because you
might be auto-unsubscribed), but IMHO it's better than receiving and
quarantining, because at least the sender can do something to resolve
the situation -- such as calling you to say their email was bounced by
your spam filter.

Providing a telephone number in the bounce is an effective way to deal
with false positives.

Regards,
Ken

-- 
Ken Simpson, CEO
MailChannels Corporation
Reliable Email Delivery (tm)
http://www.mailchannels.com

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