Having an issue with WAN users not being able to send emails to users in domains other than our own. Astaro denies attempts with anti-relay. I can't bypass using IP addresses as most of these external users have dynamic IPs. It seems to me that I need to use user authentication. I do have Active Directory/NT Domain Membership enabled in user authentication, but if I turn on SMTP Auth under SMTP proxy, I only get the option of authentication to local user accounts. Would it be OK to also enable LDAP user authentication so that I can use that to authenticate SMTP with my mail server? If not, would I need to create local accounts on the Astaro with the same username and password as the mail accounts for this to work?
This thread was automatically locked due to age.