Querying other SMTP server for valid addresses?

[Steve Swaney]

> -----Original Message-----
> From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On
> Behalf Of Mike Bacher
> Sent: Friday, November 19, 2004 7:00 PM
> To: MAILSCANNER at JISCMAIL.AC.UK
> Subject: Re: Querying other SMTP server for valid addresses?
>
> Steve Swaney wrote:
>
> > Yes, there is a way. If you use sendmail, you might want to look at
> > milter-ahead.
> >
> >         http://www.milter.info/milter-ahead/
> >
> > I quote from the web site:
> >
> > "This Sendmail milter (mail filter) allows a gateway mail server to
> > call-ahead to a relay or internal mail store before accepting mail for
> > recipients of a message. Think of it as a lazy man's LDAP. It could also
> be
> > used by fallback MX servers to verify recipients with the primary MX."
>
> So, what does it do exactly -- connect to your backend mailhubs via SMTP
> and try a RCPT TO
> command to see if the user is valid?
>

A bit more sophisticated but the answer is essentially yes.

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

>
> -----------------------------------------
> Mike Bacher / isp-list at tulsaconnect.com
> TCIS - TulsaConnect Internet Services
> Phone: 918-584-1100x110 Fax: 918-582-5776
> -----------------------------------------
>
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This message has been scanned for viruses and
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Fortress Systems Ltd.
www.fsl.com

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