FastMail Server Settings

IMAP Settings

Server address:
imap.fastmail.com
Port:
993
Encryption:
SSL/TLS (STARTTLS disabled)
User name:
Your email address
Password:
Your app-specific password.
You cannot use your regular FastMail password.

SMTP Settings

Server address:
smtp.fastmail.com
Port for SSL/TLS:
465
Port for STARTTLS:
587
Authenticate:
Yes
Encryption:
TLS, SSL or STARTTLS
User name:
Your email address
Password:
Your app-specific password.
You cannot use your regular FastMail password.

POP3 Settings

Server address:
pop.fastmail.com
Port:
995
Encryption:
SSL/TLS (STARTTLS disabled)
User name:
Your email address
Password:
Your app-specific password.
You cannot use your regular FastMail password.