Anybody found an easy way to deal with allowing SMTP traffic to Google but nowhere else. The problem here is 1e100.net IP space is all over the place (since it's Google's world wide distrubted cloud) and FQDN address object type, when it even works [bugs all over the place with that code], doesn't allow wildcares.
Really need a day to say something like "allow SMTP to *.1e100.net" because not tying to continually check and update my manual rules for google every time they expand / contract their IP space which they seem to do regularly and I'm also not trying to allow STMP to the world even from the source address in question.
Edit: Just to be clear here for clarification I'm looking to white list these, not black hence the problem
You're trying to 'blacklist' "Google" and application "SMTP," this will probably be almost impossible to maintain.
In general I would think you would want to whitelist what from your company can SMTP out, and it probably would be going to a specific destination or resource. it it possible to do a whitelist, which would inherently block SMTP anywhere else?
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