Instead of Microsoft Outlook, try one of these 4.
Every alternative is lined up against Microsoft Outlook on what people actually switch for: price, open source, self-hosting, offline use and platforms. Microsoft Outlook sits in the first row, so you can see what you give up.
How to read this. “Yes” means fully supported by the maker. “Partial” means it works with caveats. Likes reflect community popularity; vendors can’t pay for them or for placement. Our pick, marked in lime, is the option we would point most people leaving Microsoft Outlook to first. How we compare.
Microsoft Outlook alternatives at a glance
Microsoft Outlook is a freemium email app (with Microsoft 365). We compared 4 alternatives: 1 is open source, 1 is completely free, 0 can be self-hosted and 2 work fully offline. The most popular is Gmail, with 3.8k likes.
Free, open-source desktop email client from Mozilla.
Free · Open source · Works offlineFull-featured desktop email, calendar and contacts.
Freemium · Works offline