What version of Office 365 do I need

I am a little confused about what comes with Office 365. Right now I am on a 2003 Server using Exchange 2003. I want to transition to Office 365 and keep the same "Public Folder" concept that Exchange 2003 has.

   What do I need to get? I am looking at Office 365 Premium but am not sure what else I need as far as Exchange goes. Outlook comes with Office 365 and I hear rumors that it has Exchange Online but I can't find out what it really comes with. What do I need to order to replicate the functions of Exchange 2003 and Public Folders?
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Gregory MillerConnect With a Mentor General ManagerCommented:

Here is what I would recommend to look at first.
Since there is going to be a lot of detail, would you mind if we switched to email conversations or voice would even be better. Send me an email at gmiller (at) geekpatrol.com and I will reply with all of my contact info. There is just no way to send this through EE.

I typically work for the client in two ways. If you signup through me, I will hold your hand through the initial phase of install, configuration and cut over. I also give you ongoing advice at no additional charge. After the service is cut over and working, I am available for customizations and administration as you require for a minimal fee.

Full disclosure:
I am a Microsoft Partner and they do pay me a commission to assist you through the decision phase and some light assistance during setups. I take that further and do a lot of the leg work for you for no additional charge, based on the size of the account. You at all times can contact Microsoft Technical support 24 hours a day and is included with the "E" level subscriptions. My goal is to build a long term relationship where I earn any additional fees by providing you with additional spec work you may need in the future.
Gregory MillerGeneral ManagerCommented:
O365 presently does NOT support the Public Folders as you desire. They indicate maybe in the future but there is not ETA and that promise has been floating for a couple of years.

They DO have SharePoint within some of their offerings which has been able to pickup the slack for many of the clients that I have assisted over the past years.

I am an O365 partner and can guide you through this. I can also hook you up with a free account with up to 25 licenses so you can test for 30 days.
LockDown32OwnerAuthor Commented:
The whole Office 365 affair looks a little daunting. In researching further I have come to find that I might need Exchange Online as an addition service. Is that true?
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Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Gregory MillerGeneral ManagerCommented:
Not necessarily... How many users do you have?
LockDown32OwnerAuthor Commented:
Right now 15 but want to leave room to expand so I will say 20.
LockDown32OwnerAuthor Commented:
Just shot you an email
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