Sending, receiving, and organizing email in Outlook on the web for business
I have had the same issue June 2023 using Outlook PWA in Microsoft Edge. The only solution I found that worked, after reading many of these responses, was to open the email as a separate window. Only then could I copy and pasted either into it or out of it (I couldn't even copy and paste an address from that email into Google Maps without opening the email as a separate window, then copying the address).
Honestly, this seems like such a convoluted way to have to do such a common, simple command. Definitely a bug that Microsoft should have fixed by now.
Update July 6, 2023 I have found the settings and allowed copy and paste. Honestly, shouldn't that just be a standard tool already enabled? A bit ridiculous but at least I can share this with my coworkers as well.