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Recipient Verification aka 5.5.0 No such user (500 points)

Posted on 2006-03-24
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Last Modified: 2008-02-01
Hi,

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
Trying 11.11.11.11...
Connected to dominosrv.domain.com .
Escape character is '^]'.
220 dominosrv.domain.com  ready at Fri, 24 Mar 2006 18:20:31 +0000
HELO test.com
250 dominosrv.domain.com Hello test.com ([22.22.22.22]), pleased to meet you
MAIL FROM: <>
250 ... Sender OK
RCPT TO: <nouser@domain.com>
550 nouser@domain.com... No such user
QUIT
221  dominosrv.domain.com SMTP Service closing transmission channel
Connection closed by foreign host.
implode:~ $

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?

TIA
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Question by:gam1002
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Sembee earned 2000 total points
ID: 16285797
There are two parts that you have to enable.

Recipient filtering on Global Settings.
Then the filter on SMTP Virtual Server.

ESM, Servers, <your server>, Protocols, Right click on the SMTP VS and choose Properties. Click on Advanced next to the IP address or all unassigned. Then click Edit and enable "Apply Recipient Filter".
Apply/OK out.

http://www.amset.info/exchange/filter-unknown.asp

Simon.
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by:gam1002
ID: 16293711
Thanks for this. As I say I did check the SMTP VS - obviously i didn't look hard enough.

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