Recipient Verification aka 5.5.0 No such user (500 points)
Posted on 2006-03-24
I would like to enable SMTP time sender verification on Exchange 2003. Domino had this functionality, as seen below:
implode:~ $ telnet dominosrv.domain.com 25
Connected to dominosrv.domain.com .
Escape character is '^]'.
220 dominosrv.domain.com ready at Fri, 24 Mar 2006 18:20:31 +0000
250 dominosrv.domain.com Hello test.com ([18.104.22.168]), pleased to meet you
MAIL FROM: <>
250 ... Sender OK
RCPT TO: <firstname.lastname@example.org>
550 email@example.com... No such user
221 dominosrv.domain.com SMTP Service closing transmission channel
Connection closed by foreign host.
I have tried enabling the check box in ESM -> Global Settings -> Message Delivery -> Properties -> Recipient Filtering -> "Filter recipients who are not in the directory" and restarted SMTP service but this does not work. Also, when I checked the box - it warned my I must configure on the SMTP virtual IP's, but I can see nothing in the Default SMTP Virtual Server that corrosponds to this.
I am still getting a 250 at SMTP time after the RCPT TO: line...
Is this possible? Any ideas?