moore-bryan Sadly, my job requires Exchange and, thus, without putting out money for a third-party extension in something like Thunderbird, I'm relegated to Evolution. I've already checked and IT is unwilling to enable IMAP, so I'm stuck.
TL;DR moore-bryan This might fix your problem.
I have found the email clients in Linux to be profoundly lacking. Geary has excellent potential.. the fact that it works with the Protonmail Bridge when Evolution did not made me a big fan. It is the simplest and the one I am most excited to watch progress.
Geary doesn't support Exchange though.
There is -one- email client I rarely see mentioned on Linux that does support Exchange.. Hiri. It is $39 annually or $119 lifetime. moore-bryan mentioned that the price factor was prohibitive in using a product like this but I did want to mention it for others who may want to just shell out the money.
Mailspring has a free option that, for general users, offers the best alternative to Outlook, IMO. It looks far better than Evolution. It supports Exchange but needs IMAP enabled to work properly. It limits the amount of email accounts you can add to 1 or 2. Mailspring Pro is 8 dollars a month ($96 a year for an email client is outrageous IMO). Still, I have two main email accounts and Mailspring's Free version would give me (literally) everything I wanted in an email client. I still won't use it. Mailspring requires users to log in to the Mailspring Client.. This allows your email accounts to sync anywhere you login to the client which is far to much of a security risk IMO.
Mailspring is a fork of Nyls Mail. In a perfect world Nylas would be what I used. Nylas was discontinued in favor of the more lucrative Mailspring client and business model. There is some good news though.. on the home page of Mailspring's webite the company, Foundry376, stated that they would renew development on Nylas as an open-source product.
There is currently a community maintained version of Nylas Mail called Nylas Mail Lives but it has neither Flatpak, Snap, nor AppImage and I really wouldn't suggest anyone outside of Arch users try to install it.
With all of that background.. there is a way to get Exchange working on an email client other than Evolution covered in this ItsFOSS.com article. It is done using an Exchange Gateway called DavMail. The ItsFoss article seems very simple to follow.. however I have no personal experience using Exchange nor setting up an email client to work with Exchange using DavMail.
I hope this posts proves helpful to people trying to get Exchange working on a client of their choice in Linux. I would love to hear feedback from people on this issue and how they handled it.. I am an open-source activist and finding ways to bring Microsoft users to Linux would be much less difficult if users had an email client they could be happy with.