I've imported my contact list and have tried sending a number of mail messages from a POP address I added using a domain that I own, set up in Zoho and verified. Anytime I've tried sending a message from any account other than a Yahoo account, I get the error message "Reason 550  #5.1.0 Address Rejected cannot sent to XXXXX@YYYY.com"

I really like the functionality that Zoho can offer me of utilizing multiple accounts/domains and coordinating calendars and potentially sharing files to clients. However, if I can't send an email, this is useless.

 

I've searched through the forum, tried setting the accounts up with outgoing authentication, SSL but that didn't seem to do anything.

 

How do I fix this?