Visvanath Ratnaweera

> I've done this

What is "this"?

> turns out it was running in www-data and root

How does one understand that? cron.php was kicked twice? How often? From and by whom?

What is the output of '# crontab -u www-data -e'? Is there anything relevant in /etc/init.d/? If so, could you name the relevant files and copy their content to the post?

P.S. You are right. Hardware and performance is not the right place. Better suited for the Installing and upgrading forum.

Do you run Cron in the crontab of the owner of the web server process, in your case www-data?

Well, the BigBlueButton forum is new, I believe. It was not there before. If you don't have the manpower to run it, why not "hide" it and move the few discussions to the Web conferencing forums? Otherwise people, like me, will post in the stale forum and wait for answers.

Are you talking to me? This is what I said:

>>> You need to change the strategy to a targeted approach - which is by reading the log file of the SMTP server.

>> It is the specific server you/your IT need to debug. Control experiments do not help much, I'm afraid.

BTW, have you posted a screen-shot of your outgoing mail settings?