otiss on "[Plugin: WP Mail SMTP] Doesnt work with Zoho mail"

Hi,

I had the same problem. Solution is simple you have to use your email that you used to register with zoho or any that you have added to zoho account.

Please look here at ZOHO support:

https://forums.zoho.com/topic/relaying-disallowed-when-sending-to-zoho-mail

Regards