Unable to connect SMTP server

Unable to connect SMTP server

I recently changed my Yahoo mail password.  I changed my settings in Zoho as well.  Zoho has no problem retrieving my Yahoo mail, but I get the following error when trying to send mail from my Yahoo mail via Zoho.  I do not have any issues with my other accounts that I access from Zoho.

Unable to connect SMTP server:smtp.mail.yahoo.com Reason:Authentication failed:535 5.7.0 (#MBR1212) Incorrect username or password.

Any suggestions are appreciated.