Mail Assure Help

Set up Outgoing User Authentication for Multiple Domains Sending from the Same IP Address

When you have several domains sending from the same IP address, follow the steps below to configure the outbound user settings.

For the first domain added:

  1. In the Domain Level Control Panel, click on Outgoing > Manage users.
  2. In the Add a user section add all sending IPs to the IP address field (for details, see Add an Outgoing User). The Outgoing user is added to the list.
  3. Click on the dropdown to the left of the new outgoing user and select Edit to open the Outgoing user settings page.
  4. At the bottom of the page, set Re-authenticate as to Sender domain:
  5. Click Save.

For any subsequent domains added:

  1. In the Domain Level Control Panel, click on Outgoing > Manage users.
  2. In the Add a user section, click on the Authenticating Domain tab and enter a Password for the domain (the password should be entered here but is not used in this specific scenario) - see Add an Outgoing User for setting details. The outgoing user is added to the list.
  3. Click on the dropdown to the left of the new outgoing user and select Edit to open the Outgoing user settings page.
  4. At the bottom of the page, place a tick in the Re-authentication permitted box:
  5. Click Save.