You must first correctly configure email sending.
You have a testing feature to check that all parameters are correctly set.
Sure configuration is wrong, as email cannot be send...
Remove option "sendHELO" (not needed for Gmail)
Also remove option "Send emails as current user" as most smtp servers won't allow to send emails with user deferent from accounts corrected.
Check projeqtor log file for possibly more description of error.
You should also request your email provider for logs on error to find out why connection to smtp server fails.
