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Hello,<br />
<br />
It's more a project but maybe you could tell us more about your expertise on Office365 and Exchange environment.<br />
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Do you know the difference between different Office365 plans ? Did you have chose one of them ?<br />
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Here some prerequisities for an Hybrid deployment : <a href="https://technet.microsoft.com/en-us/library/hh534377(v=exchg.150).aspx" rel="ugc">https://technet.microsoft.com/en-us/library/hh534377(v=exchg.150).aspx</a><br />
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Let me know !
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Hybrid doesnt give you failover/HA features, if anything it bring another failure domain. For such a small shop I'd definitely consider going to O365 and ditching the on-prem servers.
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@François Peroux - I have touched on for about 3 days for Office 365 on a trial.. but didn't have time to really continue... and had hard time figuring out how to have the users signed in with our domain instead of Microsoft long address... so to sum up... no experience with Office 365 whatsoever. &nbsp;I know my way around Exchange fairly well. &nbsp;I picked E3 plan as it does offer other collaboration tools that we need such as Skype for business, OneDrive, conferencing, etc. <br />
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@Vasil Michev (MVP) - I have to keep this single on-premise server..
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What you need to do is to configure the SSO with Office365 and your Active Directory (on-prem).<br />
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SSO means Single Sign-On. Your user will log into his windows session and automatically logged-in Office365.<br />
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You have a step-by-step procedure here : <a href="https://blogs.technet.microsoft.com/canitpro/2015/09/11/step-by-step-setting-up-ad-fs-and-enabling-single-sign-on-to-office-365/" rel="ugc">https://blogs.technet.microsoft.com/canitpro/2015/09/11/step-by-step-setting-up-ad-fs-and-enabling-single-sign-on-to-office-365/</a>.<br />
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Let me know if you need more help on this !
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@François Peroux - awesome. thx. looks like i have to bring my DC's to 2012 first.. they are on 2008 now... or don't i?
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If you are using 2008, you have to download and install ADFS 2.0 (available here: <a href="http://www.microsoft.com/en-us/download/details.aspx?id=10909" rel="ugc">Active Directory Federation Services 2.0 RTW</a>).<br />
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Launch Windows Update after this install to have all the update regarding this installation.
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@François Peroux - I have just obtained some licenses for Office 365 E3 and am going through the documentation now.<br />
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@Todd Nelson - I am looking into this as well.<br />
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Thanks both for the info. &nbsp;Please bear with me as I go through this. &nbsp;I will update you with the progress. &nbsp;Thanks.
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Thanks both. &nbsp;I think I have enough information to proceed. &nbsp;Should I have further questions, I'll let you know.
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Dear Experts,<br />
<br />
I have a single domain, a DC server and an Exchange 2010 server for about 18 users. &nbsp;I am thinking of implementing a hybrid environment of Exchange 2010 on premise and Office 365. &nbsp;The idea behind using Office 365 is as a failover should my on premise fail for some reasons. &nbsp;I also wanted to utilize other features within Office 365 such as OneDrive, Skype for Business, and such.<br />
<br />
I would like some help on how to get started, and what I need to look out for to be successful. &nbsp;Thanks.
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Dear Experts,

I have a single domain, a DC server and an Exchange 2010 server for about 18 users.  I am thinking of implementing a hybrid environment of Exchange 2010 on premise and Office 365.  The idea behind using Office 365 is as a failover should my on premise fail for some reasons.  I also wanted to utilize other features within Office 365 such as OneDrive, Skype for Business, and such.

I would like some help on how to get started, and what I need to look out for to be successful.  Thanks.

Hybrid Exchange 2010 and Office 365

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.