Cant connect website to zoho server

Cant connect website to zoho server

Hi title says it all any help would be great here are my smtp settings on my site.

# Email Settings
Config::Set('EMAIL_FROM_NAME', 'INFO@Angel Air VA');
Config::Set('EMAIL_FROM_ADDRESS', 'info@angelairva.co.uk');

Config::Set('EMAIL_USE_SMTP', true);
# Add multiple SMTP servers by separating them with ;
Config::Set('EMAIL_SMTP_SERVERS', 'smtp.zoho.com');
Config::Set('EMAIL_SMTP_PORT', '465');
Config::Set('EMAIL_SMTP_USE_AUTH', true);
Config::Set('EMAIL_SMTP_USER', 'my username');
Config::Set('EMAIL_SMTP_PASS', 'my password');

any help would be great