Do I need to enable SMTP? If so, how?

Do I need to enable SMTP? If so, how?

Hi there,

I'm trying to setup auto notifications on my WordPress Webinar Ignition Plugin.  I believe I'm filling out the information correctly.  Is there an area where I have to Enable SMTP in my account settings?

Please see information requested and info I'm providing:
SMTP Host : smtp.zoho.com
Port: 587
TLS or SSL: TLS
SMTP Username: Info@mydomain.com
SMTP Password: my Zoho password

Am I missing something?

Thanks,
Gabriel