Office 365 NLB/FW ports?

What are all the ports I need to allow through my Firewall, NLB and to my internal Exchange 2013 Hybrid CAS servers? For the purpose of migrating mailboxes and free/busy information etc?

I thought there were like 3?
Christian HansUndecided... Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Zephyr ICTCloud ArchitectCommented:
All the ports for Office 365 are mentioned and described on this page, you'll also find a range of IP-addresses/domain-names on which you could filter.

Migrating mailboxes need ports 80/443, in fact it's the most used combination of ports for the Office 356 services.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Office 365

From novice to tech pro — start learning today.