Office/Exchange 365 with a Local (Backup) Server/Service

Posted on 2013-11-28
Medium Priority
Last Modified: 2013-11-30
Hi Everyone,

I'm trying to determine if it is possible to replicate or host a local Exchange 365 service as a backup to losing internet connectivity.

My organisation currently delivers Exchange services through the Office 365 environment.  The organisation is geographically spread and, until this point, hasn't needed Exchange as a critical business service.

We're looking at provisioning a new site, for around 100 - 200 staff, and a requirement has been raised which would allow the organisation to continue to send and receive emails (internally) if all external links are severed.  The solution would require us to maintain this for, at least, 48 hours.

Effectively, I'm hoping Exchange 365 will allow a local service to be installed which would queue external bound messages while continuing to allow internal messages to be routed and delivered.

If this isn't possible, would the only way to achieve this be the installation of a local Exchange environment?

Thank you.
Question by:Lee Williams
LVL 31

Accepted Solution

Gareth Gudger earned 1600 total points
ID: 39684666
As far as I know an on premise Exchange environment would be the only way to do this. However, you can run the two environments in tandem with what they call a hybrid Exchange environment, which is a mix of on premise and Office 365. A hybrid even allows you to move mailboxes back and forth between the cloud and on premise.
LVL 63

Assisted Solution

by:Simon Butler (Sembee)
Simon Butler (Sembee) earned 400 total points
ID: 39685179
You cannot do this with Office365.
You would have to deploy a Hybrid, as already stated, and possibly a dual site DAG. This would allow you to keep the email local no matter what, with a replica in a second location for recovery purposes. You cannot sync the data between Office365 and on prem though - the most you can do is as outlined above, which is move mailboxes back and forth.


Featured Post

Free tool for managing users' photos in Office 365

Easily upload multiple users’ photos to Office 365. Manage them with an intuitive GUI and use handy built-in cropping and resizing options. Link photos with users based on Azure AD attributes. Free tool!

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

What is the biggest problem in managing an exchange environment today? It is the lack of backups, disaster recovery (DR) plan, testing of the DR plan or believing that it won’t happen to us.
With the emergence of Office 365 as a superior email communication platform, many organizations have started switching over to it.  After migrating to Office 365, sometimes users, as well as organizations, will have to import PST files to Office 36…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…

597 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question