Fastmail vs Microsoft 365 Business

Both are business email & productivity suites tools. Here's how their key features, pricing and fit line up, from each vendor's own site.

Feature Fastmail Category leader Microsoft 365 Business Category leader
Pricing$4/user/mo$7/user/mo
Best forSmall businesses under 50 people that want fast private email on their own domain and do not need browser document editors.—
Team size1–500 people2–500+ people
Custom-domain email YesNot listed
Mailbox storage YesYes
Shared calendars YesNot listed
Document editors Not listedYes
Admin console Not listedNot listed
Spam and malware filtering YesNot listed
VisitVisit Visit

A missing check may just mean we haven't confirmed the feature yet. Something wrong? Vendors can claim their listing and send corrections.

More Fastmail alternatives · More Microsoft 365 Business alternatives