Microsoft Office 365 issue routes inbound email directly to junk

Microsoft Office 365 issue routes inbound email directly to junk

Check your junk folder.

Microsoft said it has mitigated an issue in its Office 365 service that automatically routed regular emails directly to users' junk folder instead of to their inbox.

“We're investigating an issue in which email is being sent to the junk folder,” the company said in an advisory at 7.20 am AEST.

The company said at 8:47 am that it had "reverted [a] change and observed successful email delivery."

"We're now reprocessing any emails that were incorrectly delivered as junk," it said.

iTnews’ own email accounts appeared to be impacted, with emails being incorrectly routed to junk since about 6.30 am.

Enterprise users would be well-advised to check their junk folders for the past few hours.

Administrators reported trying to troubleshoot spam filtering settings on users’ accounts before the bug was acknowledged.

It is the second issue in the past 12 hours with Office 365 that was caused by the introduction of errant spam rules.

Though it was unlikely to have impacted A/NZ businesses greatly owing to the timing, last night Microsoft broke email forwarding for about three-and-a-half hours.

“We determined that a recently deployed spam rule is causing [the] impact,” it said.

“We've prepared a fix and are deploying it to the affected infrastructure.”

Users of the cloud productivity suite have become accustomed to frequent issues and rollbacks in recent months.

A major issue earlier this month rendered the body text of emails blank, and was not resolved for a number of hours.

There have also been a series of lockouts due to outages of Azure Active Directory.

Your proactive IT support specialists

We will take time getting to know you, your team, the way you like to do business, and your goals and visions for the future. Our team of experts will work together with you to find a cyber strategy that compliments the way you do business and ensures that you are constantly up-to-date with the latest tech that is beneficial to you. We will also educate your team to be sure that they understand the strategy and are fully equipped to use the tools to their full capabilities. With our help you can go into the future confident that your systems are up-to-date, fit for purpose, and secure.