Fastmail — #1 Alternative to Gmail / Outlook
Blazing-fast independent email, calendar, and masked-alias host pioneering JMAP
Fastmail delivers instant keyboard-driven webmail, standard IMAP/JMAP/CalDAV/CardDAV sync, 600+ custom-domain aliases, and 1Password Masked Email integration with zero ads or AI inbox training.
License: Proprietary (Open JMAP / Cyrus IMAP Contributor) · Pricing: Commercial · Compare all Gmail / Outlook alternatives · Official Website