I've been using ME for years with success.
Unfortunately I had to re-build my server, I installed ME 10 and cannot find the correct settings. What I want is:
1. accept any email from outside to one of my accounts,
2. allow authenticated users to send email to both outside and Inside addresses.
My problem is that 2 is working, by for 1 I get this error message:
"503 This mail server requires authentication when attempting to send to a non-local e-mail address. "
What I am missing?