Many, many big companies do, and some universities also moved to MS365 when Google downgraded their free campus agreement, because they were already paying for MS365 for Office and that came with cloud storage and outlook.

Most of the Fortune 500?

Probably all of the Fortune 500 except some of the tech companies.

Completely agree. Teams and Outlook is the de facto standard.

Every non tech company uses outlook, basically.

It's not about outlook the mailing app. They called their SaaS e-mail Outlook, you can use it without using Windows, in the same way as Gmail. Pretty popular in the corporate world

It's interesting what kind of bubbles people live in.

Sounds like you live in the Silicon Valley bubble. I don’t have a stat but I would wager that most businesses (especially larger ones) run on outlook/exchange.

You have probably mostly worked for tech companies where business employees were not the primary workforce. When you think about it most other business generally have everyone needing a word, excel or PowerPoint. It bundles cleanly with the whole package.

Windows is still by far the most popular OS for employees at big companies. Using Microsoft's SharePoint/Outlook/etc is also extremely common.

I'm assuming your "surprise" isn't genuine.

A clear majority of companies I've worked for over the last 30+ years used Outlook and Exchange Server, or now M$365, even in those cases when my actual work was on Linux.

> I must live in a bubble... the last time I heard of anyone using Outlook was when Scott McNealy was calling it LookOut! in the 90s. [...] In a ~35 year tech career I have never been exposed to, nor used Windows nor Outlook and have never met anyone who does.

Yes, then you probably at least work in a bubble.

In my experience, it's more common than GSuite in most companies outside of startups and big tech and is ubiquitous at schools, among many, many other entities.

Of the ~40 companies I work with on a daily basis, 40 use Outlook.

I’ve worked at 2 companies who used Google for email and calendaring but still relied on O365 (one of the many naming incarnations) for Word, Excel, and PowerPoint. Microsoft really do have quite a mindshare foothold in the office productivity market.

Last big corp I worked for had a half-half setup of Outlook for email (and you were reminded that messages are retained for 7 years) and used Zoom+Slack instead of Teams (it was disabled, so not even an option), but we did use Sharepoint.

You are absolutely living in a bubble. The vast vast majority of US companies are using both Windows and Outlook.

I’m with you. I took a job in finance at one point, reporting to the CTO. On the first day they showed me my desk, a windows machine. I had not used it since high school, and not seriously then. It just never occurred to me that you would have engineers use windows (all the trading systems were Linux).

The CTO had to pull a bunch of strings to let me run Linux.