by João Filipe Oliveira.
Something is not working at all! Sent 15 messages from a forum with two moodle users, trying with different smtp servers / authentication (SSL, TLS, none). Some messages are sent to one user (but not the other), some are sent to the other, some to both, some to none. How can it be? Seems to me it is not a SMTP issue, not a cron issue, but can't figure out what it is.
On the other hand, in the same server I am hosting Joomla 1.5 and messages are sent to every user, without delay.