Authentication

Use this section to choose how to verify mail senders before sending their messages.

To configure outbound authentication:

Manage >> Outbound IPs >> {Outbound IP}

1.

Select the type of authentication. Options are:

Option	Description
None	No encryption is done
SMTP AUTH to server	Enter the hostname:port or IP address:port
Verify with	From the drop-down list, select a verifier that supports authentication

2.

If authentication is required, select the checkbox. This will require all senders to be authenticated. To make sender authentication optional, deselect this checkbox.