Is there anything more annoying in this world than dealing with Microsoft support? You might assume that Microsoft would appreciate reports detailing the abuse of its services or even act upon that information. But alas, in both cases you’d be wrong.

Content warning: This article contains mildly sexually explicit text and images.

I recently learned that it’s possible to use Google Authenticator (or any other authenticator app) with Office 365 for 2-step verification. That’s great as I’ve always believed it was Microsoft Authenticator or the highway. I’m sure Microsoft Authenticator works fine, but I don’t want multiple authenticator apps on my phone.

When using a client other than Skype for Business (formerly known as Lync) to connect with your Office 365 account, you’ll need to provide the Microsoft Lync servers with a user-agent string they recognize as an “acceptable” client. The reasoning behind this is surely to give you the best possible experience and not at all to lock out other messaging clients.

So your phone has been syncing your mail, calendar and contacts with Office 365 (Exchange Online) for months without problems when everything suddenly comes to a halt.