restrict sending to particular users in a domain

Hi,

Have a Microsoft Exchange Server delivering to an IIS SMTP Service that hosts a particular domain.

This domain is smsmaker.com, hosted on an IIS SMTP Service, with GFI SMSMaker running on that server picking up the emails, and then sending them via a mobile modem as SMS'.

Any user in the exchange system should be able to send to 0412345678@smsmaker.com, but unless that number/email address in the list, the SMS should not be sent.

We want to have a restricted list of mobile numbers (or email addresses, however you want to put it) that can be accessed, ie our staff with company mobiles only.

Had a quick look on GFI site, and Microsoft site, and couldn't find anything.

thx,
Shaun
raswaAsked:
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raswaConnect With a Mentor Author Commented:
Hi,

I think I have found the solution, it's called 5xxsink -> http://www.imprimia.com/products/software/freeutils/5xxsink/download/release
It's an addon for IIS smtp server that will reject addresses not held in certain text file
Will give it a try...
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HousammuhannaCommented:
If what I understand. then you need an AntiSpam software that work on exchange and then you can add the allowed users or blocked users

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MesthaCommented:
There is nothing built in that will restrict to certain recipients at a domain. It is all done at domain level.
The only thing I can suggest is that you create contacts for each number and tell users to send to that instead of the number directly. However if the GFI product cannot restrict to certain devices that would seem to be a flaw in the product. Outside of the USA it is not possible to send any text messages for free, and without restrictions it would be abused in most companies.

Simon.
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