I am trying to configure newsletter to send via SMTP.
I have tried both my own SMTP server, which I know is working and Send Grid, but I get the following error
Newsletter TEXT test email NOT sent: try to change the sender data, remove the return path and the reply to settings.
Array
(
[type] => 8
[message] => Undefined property: NewsletterControls::$errors
[file] => /var/www/html/wp-content/plugins/newsletter/main/diagnostic.php
[line] => 108
)
Newsletter HTML test email NOT sent: try to change the sender data, remove the return path and the reply to settings.
Newsletter both TEXT and HTML test email NOT sent: try to change the sender data, remove the return path and the reply to settings.
After setting up my SMTP settings for both SendGrid and my own SMTP Server, I used the test button in the SMTP settings screen and this successfully sent emails, but I when I use the diagnostics screen, I get the error above.
Any help would be appreciated.