How to Set Up "Fastmail" in Third-Party Applications?
This guide explains how to securely configure your Fastmail account for use with Regzion Software or any IMAP-compatible third-party email client. By enabling 2-step verification and generating an app-specific password, you ensure secure access while maintaining full compatibility.
Fastmail Setup Guide
Step 1: Enable Two-Step Verification
1 ) Log in to your Fastmail account at https://www.fastmail.com.
2 ) Click the gear icon in the upper-right corner and press View All Settings.
3 ) Select Password & Security from the right sidebar, and locate and press the Set-Up Two-Step Verification button.
4 ) Select the mode of adding verification device. (Select Authenticator app (TOTP), scan the QR code, enter the verification code, and finish the setup).
Note: Two-step verification is required before you can create app-specific passwords.
Step 2: Generate an App-Specific Password
1 ) Stay in the Password & Security section of your Fastmail account.
2 ) Scroll to bottom and search for Connected apps & API Tokens, then click on Manage App Passwords and Access.
3 ) Click on New app password and label the password (e.g., “Regzion Backup”).
4 ) Hit on Generate and securely copy the password. Use it in place of your login password in third-party apps.
Step 3: Fast Mail Configuration Settings for Email Client/Third Party Apps
Use the following settings in Regzion Software, or any IMAP-compatible email client:
- IMAP Server: imap.fastmail.com
- IMAP Port: 993 (SSL required)
- SMTP Server: smtp.fastmail.com
- SMTP Port: 465 (SSL) or 587 (STARTTLS)
- Username: Your full Fastmail email address (e.g., user@fastmail.com)
- Password: The app-specific password from Step 2
After configuration: Test your connection to verify successful authentication. Then proceed with your intended operations (e.g., backup or email migration).
Pro Tip: Always use SSL/TLS or STARTTLS to keep your connection secure.