Send Email Window Stuck

Hi

The picture below has ben like this for 2 days and I don't know if all the emails were sent or not. I'm sending about 280 emails to parent with their password and there is only one email address per email. 

I'm using SMTP PHPMailer and my host settings are set to 1000.- emails or mor per day and i'm using Sytist 5.1.1

What am i doing wrong.

Do a test email in the Settings -> Mail Sending Settings. It will show an output and see if there are any error messages. If so, you need to fix your SMTP credentials.

If there is no error, then it is probably triggering mod security on the server when you try to send the email. You will need to contact your host to check on that.