My organization uses Connection Filtering as well as Content Filtering with Exchange 2007 SP3 as a part of our Anti Spam strategy. We are struggling with a few important external email servers that send us enough spam to get placed on our IP Block List, or send enough spam to get on Internet-based block lists to which we subscribe. Unfortunately, these few servers represent very important partners of ours and the blocking that is occurring has a tremendous negative impact on the legitimate email that we need to receive from those servers.
Can we bypass Connection Filtering for a given IP Server, but still enforce Content Filtering? If so, is this advisable in solving our delimma?
Software/Hardware used: Exchange 2007 (about to upgrade to 2010)
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