- To ensure that emails sent from domains on your server are delivered to recipients through the MX Guard service, you need to update the MTA (Mail Transfer Agent) or Send Connector part on your server to proxy.mxlayer.com (authentication = off – Port: 25). Optionally, you may need to allow ports 587 or 465.
- Additionally, to enable the system to control emails sent from the server where the domain is located, configuration is required in the admin panel. These settings can be accessed in the admin panel under Domain > Security > Sending IP Addresses.
MTA Configuration for Zimbra Server Users:
Exchange Send Connector Configuration for Exchange Server Users: