Message restrictions - will they stop spammers?

7 Jun 2006 2:37 PM

JMS

Ok, probably a Exchange 101 question here, but if we have an All Company list
and we have a Message restriction set for accepting messages, what happens if
someone from outside our company sends to our All Company list? I assume
it'll be blocked.

Now, if I am external and send an email and spoof the address of someone who
does have the rights to send to the All Company list, will it work? Also
doubting it wll.

Just need clarification!

7 Jun 2006 3:55 PM

Bharat Suneja [MVP]

Depending on what restriction you set - if you set it to receive from
particular users in your Org, that's based on those users' accounts, not
their SMTP addresses. So someone sending as them from outside is not likely
to succeed.

If you select "Authenticated Users", the group cannot get mail from internet
senders at all.

--
Bharat Suneja
MVP - Exchange
www.zenprise.com
NEW blog location:
www.exchangepedia.com/blog
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"JMS" <J**@discussions.microsoft.com> wrote in message
news:AEC93623-340E-42ED-88F1-0408624AA965@microsoft.com...
> Ok, probably a Exchange 101 question here, but if we have an All Company
> list
> and we have a Message restriction set for accepting messages, what happens
> if
> someone from outside our company sends to our All Company list? I assume
> it'll be blocked.
>
> Now, if I am external and send an email and spoof the address of someone
> who
> does have the rights to send to the All Company list, will it work? Also
> doubting it wll.
>
> Just need clarification!