Sorry to double post -my original thread seems to have died.
I am trying to allow anonymous relay for an IP on SM 16.x.
I have added the IP to the whitelist and enabled the sliders for both SMTP and SMTP auth bypass.
If the recipient of the email is LOCAL to smartermail, it works. Otherwise, it gives "No such user here" (e.g., sending to a gmail recipient gives this error).
Any thoughts please?
original thread: https://portal.smartertools.com/community/a89577/anonymous-relay-on-sm.aspx