Use 1Password to create and manage Masked Emails in Fastmail

To create and fill a Masked Email, visit a website where you want to create an account. On the sign-up page, select the email address field and choose Create Masked Email. Then click Fill Email. If you have multiple Fastmail accounts set up with 1Password, you can choose which account to use. To generate a different Masked Email, click Regenerate. ...

If you receive unwanted messages at a Masked Email, you can block incoming email for it. To block incoming email to the alias from Fastmail, click Settings > Masked Email.

Creating and managing Masked Emails requires 1Password in your browser. To delete a Masked Email, sign in to your Fastmail account and click Settings > Masked Email, then Delete. To stop using your Fastmail account with your 1Password account: 1. Sign into your account on 1Password.com. 2. Click Integrationsin the sidebar. 3. Click Active and selec...