Set up Vivaldi Mail

Vivaldi is a web browser that can be downloaded for free on Windows, Mac, or Linux. Vivaldi Mail is Vivaldi's built-in mail client, allowing you to keep your mail folders in sidebar view while browsing the web.

Vivaldi Mail needs its own app password to access your information. If you use your normal password or your Fastmail two step verification password in Vivaldi Mail, syncing won't work and you will see a password error.

• How to set up Vivaldi Mail
• How to set up Vivaldi Calendar

How to set up Vivaldi Mail

The easiest way to set up your Fastmail account in Vivaldi Mail is using OAuth.

1. Open the latest version of Vivaldi.
   1. If you're using Vivaldi for the first time, be sure to select Enable Mail, Calendar and Feeds during setup.
   2. If you've previously set up Vivaldi, go to Vivaldi → Settings and click Mail to confirm that this option has been enabled.
2. Click the Vivaldi Mail icon on the browser's sidebar, then click Add Mail Account.
   
   
3. Enter your Fastmail email address, leave the dropdown menu on IMAP, and click Continue.  
   
   
4. You will see a window prompting you to choose an authentication type. Click Use OAuth.
5. A new Fastmail window will open. Log in using your normal password.
   
   
6. Vivaldi will ask for permission to access your Fastmail account. Click Allow.

If you need to set up Vivaldi Mail manually, then you can fill in the server details as follows:

1. Incoming Server: imap.fastmail.com
2. Port: 993
3. Username: Your full Fastmail username, including the domain.
4. Password: Your Vivaldi Mail app password. (What is an app password?)
5. Outgoing Server: smtp.fastmail.com
6. Port: 465
7. Username: The same Fastmail username entered previously.
8. Password: The same Vivaldi Mail app password entered previously.

How to set up Vivaldi Calendar

1. Click the Vivaldi Calendar icon on the browser's sidebar, then click Add Calendar Account.
   
   
2. Select Fastmail and click Continue.  
   
   
3. If you have already set up your Fastmail account in Vivaldi Mail, your display name and username should autofill. Click Add Account.
   
   
4. Select which of your Fastmail calendars you'd like to sync or hide in Vivaldi. Click Save Account.