Have a look at this page:
https://wiki.mahara.org/index.php/System_Administrator's_Guide/Installing_Mahara/Troubleshooting
and search for the question that talks about SMTP.
Have a look at this page:
https:/ /wiki.mahara. org/index. php/System_ Administrator' s_Guide/ Installing_ Mahara/ Troubleshooting
and search for the question that talks about SMTP.