They can be of the form: user-sales@domain.com  In this case ‘sales‘ is the extension for ‘username‘. You can also have wildcard extensions that let you effectively create unique, disposable e-mail addresses.

Add a static extension

1. Visit https://cp.emailarray.com
2. Log in using your full e-mail address ( user@domain.com ) and current password.
3. Click on Extensions icon (image of a plus sign)
4. Click on the Add extension button
5. Enter sales as the extension name
6. Enter your e-mail address as the Deliver to address
7. Click on Add extension

Add a dynamic(wildcard) extension

1. Visit https://cp.emailarray.com
2. Log in using your full e-mail address ( user@domain.com ) and current password.
3. Click on Extensions icon (image of a plus sign)
4. Click on the Add extension button
5. Enter sales-default as the extension name
6. Enter your e-mail address as the Deliver to address
7. Click on Add extension

Remove an extension

1. Visit https://cp.emailarray.com
2. Log in using your full e-mail address ( user@domain.com ) and current password.
3. Click on Extensions icon (image of a plus sign)
4. Click on the “–” icon (minus sign), next to the extension you want to remove