Communigate Pro. It does reject about 99% of them. It's the clever spammers that are getting buy me causing me to bounce the messages.

Thanks
Wayne
----- Original Message ----- From: "David F. Skoll" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, November 30, 2006 1:10 PM
Subject: Re: [Mimedefang] bounce check with sendmail and md_check_against


Wayne wrote:

I know everyone has probably figured this out but me. I am using
md_check_against_smtp_server on my mimedefang server to check usernames
before sending the mail to my server.

What's your internal server running? Some versions of MS Exchange and qmail don't reject invalid recipients at RCPT time, so md_check_against_smtp_server
is useless.  With other versions of Exchange, you need to explicitly
enable RCPT-time checks; google for "Exchange Recipient Filter"

Regards,

David.
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