
I have 2 Joomla 3.8.13 sites hosted at one.com and noticed that sending e-mail isn’t working.
When I push the test mail in the Global settings with PHP mail this error message comes up “can not start e-mail function” “test mail could not be sent”.
When sendmail is selected also aan error “can not execute /usr/sbin/sendmail” followed by “test mail could not be sent”.
SMTP settings gives the following error
“An error has occurred while fetching the JSON data: HTTP 503 status code. error“
I contacted one.com but they say all systems are green and e-mail should work.
What is wrong with my Joomla setup?