Querying other SMTP server for valid addresses?

Mike Bacher isp-list at TULSACONNECT.COM
Sat Nov 20 00:00:16 GMT 2004

    [ The following text is in the "ISO-8859-1" character set. ]
    [ Your display is set for the "US-ASCII" character set.  ]
    [ Some characters may be displayed incorrectly. ]

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?


Mike Bacher / isp-list at tulsaconnect.com
TCIS - TulsaConnect Internet Services
Phone: 918-584-1100x110 Fax: 918-582-5776

------------------------ MailScanner list ------------------------
To unsubscribe, email jiscmail at jiscmail.ac.uk with the words:
'leave mailscanner' in the body of the email.
Before posting, read the MAQ (http://www.mailscanner.biz/maq/) and
the archives (http://www.jiscmail.ac.uk/lists/mailscanner.html).

Support MailScanner development - buy the book off the website!

More information about the MailScanner mailing list