Marc Lognoul's IT Infrastructure Blog

Cloudy with a Chance of On-Prem


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Exchange: Network Ports and Flows References

Having recently dealt with MS Exchange vs. Firewall and flows issues, I thought it might be interesting to post a summary of useful links related to network ports and flows used by Exchange and various clients . Bottom line: Exchange and firewalls ain’t no good friends but you already knew that don’t you?

Clients and Mailflows

Unified Messaging

Hybrid Deployments

Other Resources