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IIS With several SMTP Smarthost

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Last Modified: 2012-05-06
Hello!
We have a couple of IIS servers that is going to sniff for mail content that is sensitive company information.
We need this SMTP connector to deliver mail to a vireus scanning engine, we have 4 with 4 different ips, not ha or anything. So we need to configure smarthosts on the SMTP Connector in IIS?

How is this done?
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Vishnu KiranPrincipal Support Engineer
CERTIFIED EXPERT

Commented:
Hi GMH77,

Please visit the below link:

http://www.petri.co.il/configure_iis_to_be_a_smart_host_for_exchange.htm

Hope this helps for your configuration.

Regards,

Vishnu.

Author

Commented:
Hello,
This is helpfull information when installing/configuring IIS.

My issue is that I want to use two smarthosts on one Virtual SMTP Connector.
I need to deliver e-mails to one of the virus scanners that the SMTP traffic should pass trough for virus/malware scanning.

We do not have any load balancer or HA solution on the virus scanners, just two ip adresses.
And, we have to use the IIS SMTP, we cant use Exchange that would have solved the whole thing
Like this [123.123.123.123, 192.168.0.10]
Vishnu KiranPrincipal Support Engineer
CERTIFIED EXPERT

Commented:
Hi GMH77,

Could you check this Microsoft technet article which discuss on how to configuring an SMTP Connector.

http://technet.microsoft.com/en-us/library/aa998478(EXCHG.65).aspx

Regards,

Vishnu.

Author

Commented:
PS! This is not an Exchange konfiguration.
E-mails will be recived from an Exchange server doh - this is an stand alone SMTP Server with scanning software implemented.

Its seems like MS IIS SMTP dont support multiple smarthosts.
If anyone know of an other solution to this, please help :)
Commented:
SMTP Virtual Connectors only support one smarthost entry configuration.  SMTP Connector in Exchange however does through this (if you did not already have the instructions):

SMTP Connector -> Properties -> General tab, select "Forward all mail through this connector to the following smart hosts:" -> enter multiple domain names separated by semi-colons ( example1.mail.com;example2.mail.com ), or multiple IP addresses individually encased in square brackets separated by semi-colons ( [0.0.0.1];[0.0.0.2] ).

The solution with your type of configuration is to use a regular SMTP Connector in Exchange with multiple smarthost addresses pointing to multiple addresses you have tied to the multiple scanners.  You may have to break up and setup multiple virtual servers to scan with, if you have not already done so, and/or set up some funky internal network routing and rules to separate/differentiate between the scanners with their own addresses.  With what you have, this is how it would need to be set up.

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