Blocking mail w/empty from field?

[sghouse]

I believe I have seen this discussed before but I can't seem to hit on the right search term to dredge it up again.

How does one filter spam where the from: field is: <>

The regular IMS message filtering works fine if you have a domain name to enter but I can't quite figure how to filter this type of msg.

Using: Exchange 5.5sp4 on NT4sp6

Thanks for any guidance.
sghouse

 

[thormax]

I am not sure how you could possibly do this without a third party software attached. I use TrendMicro ScanMail and eManager and I can block all of these with ease including viruses. I have been using it for three years and I have to say it is wonderful. I infact just ran across a place to get both for only $350. A gigantic savings considering I paid over $1500 origninaly for just the ScanMail. You might want to try it. It has made my life a thousand times eaiser.