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Setting up Fastmail

Requirements

To use Fastmail with Postbox you must have:

  1. a paid account, or if you are on trial, an account verified by phone number
  2. an app password, see Fastmail's app password setup guide.

Here are the settings to use:

Incoming Server

Account Type: IMAP
Incoming Server: imap.fastmail.com
Port: 993
User Name: [your account]@fastmail.com
Connection Security: SSL/TLS
Authentication: Password

Outgoing Server

Server Name: smtp.fastmail.com
Port: 465
User Name: [your account]@fastmail.com
Connection Security: SSL/TLS
Authentication: Password