Tag Archives: Office 365

Fix email connectivity problems after Office 365 upgrade

Some people who have been recently upgraded from the pre-upgrade version of Office 365 are having connectivity problems with Outlook. For example, you may see a message in the status bar at the bottom of your outlook window that says Trying to connect or Disconnected. There are a few things that can cause connection issues.

The most common cause for connection problems is outdated operating system or app software, so you should check that first. If your software meets office 365 requirements, try the other steps here. Test your Outlook connection between each step.

 TIP  While you track down Outlook connection issues, you can keep sending and receiving email and manage your calendar and contacts in Outlook Web App.

Step 1: Make sure that your operating system is up-to-date

  1. Check the version of your software and your operating system to see if they meet the minimum requirements for Office 365. There’s a list of all the minimum software requirements located here. If the versions that you’re using aren’t supported, you’ll need to upgrade.
  2. If your operating system and software meet requirements, you might just need to install a software update for Outlook. Run Windows Update to install the latest patches and feature updates.

Step 2: Repair your Outlook profile

  • Follow these quick steps to repair your Outlook profile and see if that fixes your email connection.

Why this might help: If your Outlook profile was set up so that Outlook automatically discovers the right mail server (using Autodiscover), email will continue to work during an upgrade. If the profile was set up manually to use a specific email server name, you may need to repair the profile.

Step 3: Create a new Outlook profile

  • If repairing the profile doesn’t work, try creating a new email profile in Outlook.

Step 4: Use the Outlook Connectivity Troubleshooter

  • If you’re still experiencing connectivity problems, try the Outlook Connectivity Troubleshooter. This tool can help guide you through diagnosing and resolving Outlook issues.
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10x increase in Public Folder limits

We have made investments to scale up the limits for Public Folders in Office 365. Today we are raising the folder count limit to 100,000 folders. This is a 10x increase over the prior limit as defined in the Exchange service description limits. This enables migration of larger existing public folder hierarchies and increased use of the feature in Office 365. Customers can immediately take advantage of this new scale for public folders.

Public Folders in Exchange admin center

As you scale the number of public folders in the service you might need to keep track of the number of folders. Exchange Online remote PowerShell provides an easy way to see the current public folder count in Office 365. Using the Get-PublicFolder and Measure-Object cmdlets you can readily get a current count of your public folders created in Office 365.

Get-PublicFolder –Recurse –ResultSize Unlimited | Measure-Object
Count   : 40051
Average :
Sum     :
Maximum :
Minimum :
Property :

This is the first round in the public folder scale improvements we are working to deliver as we shared in the Exchange team blog post. Scale improvements are targeted to be delivered to Exchange Server 2013 in cumulative update 6.

-Brian Shiers

Frequently asked questions

Q: Does the increase in folder count change the number of public folder mailboxes or quota for public folders?

A: The number of public folder mailboxes and the total public folder quota remain unchanged. These limits are documented in the Exchange Online service description section for sharing and collaboration.

Q: How do I know of the limit has been increased for my tenant?

A: You don’t need to check. The folder count limit has been increased for all Exchange Online tenants with public folders.