To enable direct mail delivery from your Postfix server to Vaultastic, you need to share the hostname or IP address of the outgoing SMTP server with the Vaultastic team.
Share information via deployment ticket raised to the Mithi Support team. Mention the primary domain name and IP address or Hostname of the outgoing SMTP server
Before changing the outgoing SMTP server or hostname, please inform the Vaultastic team to update the connector. Failing to do so will result in Vaultastic bouncing the mail.