SMTP Configuration settings for Zoho Mail - SSL

https://www.zoho.com/mail/help/zoho-smtp.html

SMTP Configuration settings for Zoho Mail - SSL

Outgoing Server Name: smtp.zoho.com
Port: 465
Security Type: SSL 

Require Authentication: Yes. 

The email address should match the email address/ aliases of the account, for which the authentication details are provided. 

 SMTP Configuration settings for Zoho Mail - TLS

Outgoing Server Name: smtp.zoho.com
Port: 587
Security Type: TLS 

Require Authentication: Yes. 

The email address should match the email address/ aliases of the account, for which the authentication details are provided.