Judging by numerous online complaints from Microsoft users, on February 20th, Outlook clients’ mailboxes were filled with “junk” e-mails for several hours due to broken spam filters.
The news appeared both on social networks and on the Microsoft Community website. Based on available information, numerous messages appeared in mailboxes, including those previously marked as spam and moved to the trash. Users complained that the problem kept getting worse over time. In addition, according to them, even setting e-mails to receive letters only from trusted sources did not change the situation – spam and phishing mailings continued to arrive, filters did not work.
Despite numerous complaints, the Outlook Service Status section on the Office website reported that everything was working as expected. However, later information still emerged confirming the existence of the problem. Now it is emphasized that it has already been eliminated. According to Microsoft, the outages were observed from 05:00 UTC – 08:00 UTC on February 20 until 20:55 of the same day. In addition, some users complained about problems with navigating the mail client and a delay in sending emails.
However, the problem is not new. According to Bleeping Computer, any form of spam has been a problem in Outlook for months, with some sources reporting massive spam inflows since November 2021.
The last significant outage was reported just over a week ago. Then some users lost access to the service completely.