Block mails from being sent to specific addresses

Hi. This is a bit of a strange one. I know it is possible to block mails coming in from certain addresses, but is it possible to block mails from being SENT to certain addresses. We want to make sure that only authorised people in our company send mails to sensitive clients, so I was wondering if it was possible to block anyone else from sending mails to these addresses.

We are currently running Outlook 2003 on Windows XP here. Each e-mail account is POP3 (we don't have an Exchange Server).

Thanks a lot.
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With Exchange (which I know you stated you do not have) you have 'some' options to restrict outbound messages.

Other then the above...I'm not positive how to do it with POP3 alone, unless you contact the ISP and see if they are able to 'block' destination by user for you.

I'll look a bit more though...

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Again, not directly for non-Exchange environment.

IS there any chance you'll be adding Exchange in the next IT budget process?  If users permission are of a concern, perhaps adding the additional MS 'apps' to being giving yourself more control over the environement will be helpful.

IIRC WatchGuard has a Fire'box' product that CAN do this, but I'll need to review the current model list to recommend one to look at for your purposes.
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optiaAuthor Commented:
Hi Plantwiz. Thank you for your help. No, we are not planning on adding Exchange in the near future. We have no real need for it just yet.

So there is no way to block outgoing mails to specific addresses with POP3? I will try calling the ISP as you suggested and see what they say.

Once again, thanks a lot.
Hi Optia,

Nothing I can think of...and nothing I was able to search out.  Doesn't mean there is absolutely NO way electronically.   I suppose you could consider these less permanent but possible means:

IF you manage your client's systems/servers you could BLOCK your users addresses on their side (not 100%, nor the best method, but you could)  Labor intensive for you.

You could create an SOP for your company and write up any employee who contacts a client they are not specifically requested to contact and then terminate them if such action is warranted.

Otherwise, opt for hiring only folks WHO can follow procedures without the whole formal SOP process... and GOOD luck if you attempt to implement that approach :)

So, no I haven't located anything more specific then previously posted.  I'll still search around, but I think you are limited due to a non-exchange environement.
optiaAuthor Commented:
It seems that it is not possible to do this without an Exchange Server but I want to award you the points anyway for your help. Thanks a lot.
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