Backing Up Exchange Online Mailboxes to PSTs Continues to be an Awful Idea

Characterizing backup of Exchange Online mailboxes to PSTs as brain-dead might have been harsh, but it’s an accurate assessment of the worth of this idea. Plenty of cloud-based backup offerings exist that can process Exchange Online data more securely and at scale. If you want to backup Office 365, stay away from PSTs and use a different product, after asking some questions to ensure that the backups deliver the value you expect.

Exchange Online Protection Restricts Tenants from Sending Unprovisioned Email

Exchange Online Protection monitors outbound email to pick up signs of potential compromise in Office 365 tenants. This can lead to EOP restricting a tenant’s ability to send outbound email and force the administrators to check for compromised accounts or connectors and other problems before contacting Microsoft Support to ask them to lift the restriction.

When Exchange Online Protection Blocks Email Senders

Exchange Online Protection monitors email traffic in and out of Office 365 tenants. When a mailbox exceeds limits, it might end up being restricted, such as in the case when the mailbox might be compromised. We tried to find out when Exchange Online Protection restricted mailboxes and what to do afterwards. Here’s what we discovered.

Microsoft Pushes Removal of Basic Authentication from Exchange Online to Mid-2021

Covid-19 dealt a blow to Microsoft’s plans to remove basic authentication from 5 connection protocols for Exchange Online and forced them to postpone the removal from October 13, 2020 to sometime in the second quarter of 2021. The news is disappointing because basic authentication is a weakness exploited by many hackers. But you can’t plan for a pandemic and Office 365 tenants need more time to be ready for the deprecation.

Outlook Mobile Delegate Access for Exchange Online Mailboxes

Outlook Mobile now supports delegate access to Exchange Online mailboxes. By granting fuil access to a delegate, they can open and work with a mailbox, and send messages using the SendAS or SendOnBehalfOf permissions. The new feature underscores the advantage Outlook mobile enjoys over other mobile Office 365 email clients.

Adding a Disclaimer to Calendar Meeting Requests

Exchange transport rules are a powerful way to apply different conditions to messages as they pass through the transport service. In this case, we add a disclaimer to calendar meeting requests with a pretty simple rule that works on the basis that it detects a special x-header in meeting requests and applies the disclaimer when the x-header exists.

New OWA Files View Makes Attachments More Accessible

OWA now includes Files in its “module switcher”). The new module allows fast access to attachments stored in any folder in an Exchange Online mailbox. It’s a neat feature that will please many people simply because it makes finding often-elusive attachments just that bit easier.

New OWA Becomes Default for Mobile Browsers

Not many Office 365 users choose OWA as their mobile client, but those who do will soon be forced to use the new OWA because Microsoft is removing the toggle to allow people to switch between the old and new versions in February, just like they did for workstation versions last July. The new OWA is a fine client, but its usefulness on mobile browsers is not as good as the functionality offered in Mobile Outlook, which continues to be our choice as the best mobile Office 365 email client.