Email error SMTP Requires a secure connection

it happens to me any solution please?

Which email server are you using? Gmail?

Hi
I use the cloud version. Great program. I’m having problems with SMTP. I use my own website server using WebMail. In SMTP Host if I use “smtp.my-site.com.au” I get an immediate “fail” error. If I use only “my-site.com.au” I get a 504 time out message. I have spent two days with “my-site” support on various configurations of Manager Email setup to see if one would work. I am told the latest email setup is correct. As an experiment, I used only “gmail.com” instead of “smtp.gmail.com” I got an error as expected. I don’t want to use Gmail for Manager for unrelated technical matters or Live.com and especially Yahoo.

email address
e-address@my-site.com.au
Name
BlahBlah
Size
A4
Email sending format
HTML
SMTP server
Hostname: my-site.com.au Port: 587