I am using zoho mail free account. It sends and receive email fine for all the gmail and other mail accounts. But it doesn't send email to Hotmail or Outlook users.

Whenever i send email to outlook or hotmail email id it display as "In Retry Queue" in my Sent items box. While i send email to same account from gmail it received quickly while send from Zoho its not recieved at all.

Can you please let me know what will be the issue ?

Thanks,

Rahil