Hi edmguate
As i asked before maybe you could share your website url and a temp super user account to your backend.
Look HERE how to keep both private.
Regarding mail sending it is a joomla core feature and it is not related in any way to the template itself -
Said that you can try to switch from global configuration - > Server Tab -> Mail settings , your mailer from php mail to SMTP or sendmail -
If you still cannot solve your issue i suggest to ask your hosting provider to have a look at it -
Regards