Fastmail IMAP
Fastmail IMAP Settings
The IMAP server, port and encryption needed to add Fastmail to any mail client, plus the account requirements that trip people up.
3 min read
Fastmail
Independent paid email built for speed and standards support
Open Fastmail login ↗
3 guides available
Independent guide — not affiliated with or endorsed by Fastmail.
Fastmail is an independent, subscription-funded provider with a long-standing focus on standards support and performance. IMAP, POP3 and SMTP are all supported without restriction, though third-party clients authenticate with an app password created in settings rather than your account password.
The full set
All Fastmail guides
Fastmail SMTP
Fastmail SMTP Settings
The outgoing mail server details for Fastmail, and what to check when messages will not send.
3 min read
Fastmail Settings
Fastmail Server Settings: IMAP, SMTP and POP3
Every Fastmail server setting in one place — incoming, outgoing, ports and encryption.
3 min read
Enquiries
Fastmail questions
Does Fastmail support IMAP?
Yes, fully. Connect to imap.fastmail.com on port 993 with SSL/TLS, using an app password generated in Settings → Privacy & Security.