Email sending error

[Cloudpanda]

I get the following error in the logs when mail is trying to send. Can someone tell me if this is a host problem or something I have set up wrong. 

[2020-08-13 16:56:09] prod.EMERGENCY: Error emailing admins, malformed email=proc_open() has been disabled for security reasons

 

Thank you

[Cloudpanda]

Found it. If anyone else runs across this, you have to go into your cpanel (if you have one)  cPanel -> Software Tab -> Select PHP Version -> Options (Top Menu Bar) and then find and removing proc_open from the list of functions inside the text area called "disable_functions"