gmail accounts in Zoho not working

I have listed 2 gmail accounts in Zoho as secondary email addresses under my profile. I cannot send from them in Zoho. This error code comes up after hitting send:

Error while processing the request! Unable to send message;Reason:530-5.5.1 Authentication Required. Learn more at 530 5.5.1 http://support.google.com/mail/bin/answer.py?answer=14257 vx10sm129952922pac.17 - gsmtp

It appears that the wrong password was connected to them when they were set up. Is this as simple of a fix as deleting them and re-entering them with the correct password?