Hi, I installed moodle 1.9 on a Turnkey Linux moodle appliance. (The appliance had 1.8, whereas I needed 1.9 for a plugin I need.)
I did not remove the 1.8, yet, to see its settings.
The email functions of 1.8 works fine. But for 1.9, the mail reaches to inner network addresses (xxx@mydomain.com), but does not reach to external domains like gmail and yahoo. The funny thing is, I can not see any settings for email in the 1.8.