Reject emails to nonexistent addresses?

[Mike Kercher]

-----Original Message-----
From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf
Of Steve Swaney
Sent: Monday, January 17, 2005 10:16 AM
To: MAILSCANNER at JISCMAIL.AC.UK
Subject: Re: Reject emails to nonexistent addresses?

> -----Original Message-----
> From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On
> Behalf Of Mike Kercher
> Sent: Monday, January 17, 2005 10:56 AM
> To: MAILSCANNER at JISCMAIL.AC.UK
> Subject: Re: Reject emails to nonexistent addresses?
>
> There are a couple of milters.  The one I use is milter-sender.  There
> is another called milter-ahead that does the call ahead to your
> Exchange server or other final destination.  milter-sender also does
> the call ahead.
>
> Mike
>

Milter-ahead checks to see if the email can be delivered to the recipient
before sendmail accepts the message for delivery. Not normally needed on a
mailhub but very useful on a pass-through gateway.

Milter-sender attempts to verify that the sender's email address is in good
standing by performing an SMTP callback to the MX server responsible for the
sender's domain.

Both are handy tools.

There are many more useful milters available at

        http://www.milter.info/

Another one I'm about to test is

milter-limit limits the number of messages by connecting client IP, from a
sender, or to a recipient over a given time period.

Steve
Steve Swaney
President
Fortress Systems Ltd.
www.fsl.com
steve.swaney at fsl.com


--
Bear in mind that milter-sender ALSO (optionally) performs the call-ahead
function in addition to verifying the sender.

Mike

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