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Recently our firewall has blocked a number of connections to our mail servers from countries outside of the US. Normally these seem to be Microsoft servers based out of UK/Ireland and recently Norway. I am curious what is the best way to configure a policy rule for these services. As a short term workaround I have updateable objects for those nations to allow SMTP connections but that is a bit of overkill. Is there an updateable object for MS Services that would accomplish the same thing? I have browsed the objects but I'm not sure if a hosted Exchange service or 0365 may be involved or if both of those services would be needed.
Any help appreciated.
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