Mail Free
One custom domain · up to 5 users · 5 GB mail storage/user · no file storage · IMAP/POP/ActiveSync excluded
Checked 15 Oct 2026
One custom domain · up to 5 users · 5 GB mail storage/user · no file storage · IMAP/POP/ActiveSync excluded
Checked 15 Oct 2026
30 GB mail/user · WorkDrive 100 GB/team for 3–10 users, +10 GB per additional user · 30 MB attachments, huge attachments up to 500 MB
Checked 15 Oct 2026
100 GB mail/user · 100 GB retention/user · WorkDrive 1 TB/team for 3–10 users, +100 GB per additional user · 40 MB attachments, huge attachments up to 1 GB
Checked 15 Oct 2026
5 GB or 10 GB mail storage per user · no file storage
Checked 30 Sep 2026
50 GB mail storage and 50 GB retention storage per user · no file storage
Checked 30 Sep 2026
Custom limits · Microsoft Active Directory sync · virtual private cloud above 100,000 users · pooled mail storage above 1,000 users
Checked 15 Oct 2026