(See mail header below) How does mail make it in to our company when it doesn't have a valid company address? It almost looks like this users is on some kind of mailing list or group mail out that doesn't show his real e-mail address.
Mail header that my boss received (question 2)...
I’m new to Exchange 5.5 and I would like to know if there is any thing in Exchange that I can use to just allow certain e-mail address in? My boss only wants to allow the company e-mail to come in to the company and filter all other e-mail addresses.
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