status=deferred (SASL authentication failed; server smtp.zoho.com[165.254.168.48] said: 535 Authentication Failed)

status=deferred (SASL authentication failed; server smtp.zoho.com[165.254.168.48] said: 535 Authentication Failed)

Hi,

One question, why does the SASL authentication message happen? I receive this after setting my Postfix in ubuntu and trying to send an message from there to my Zoho email account:

 status=deferred (SASL authentication failed; server smtp.zoho.com[xxx.xxx.xx.xx] said: 535 Authentication Failed)

Any hints are welcomed,