Postfix with sendgrid showing error

[Adam Golub]

Hi folks!

We were following to this instruction to configure postfix

https://cloud.google.com/compute/docs/tutorials/sending-mail

And its not working. 

Error:

root@website:/etc/postfix# postfix reload

postfix/postfix-script: refreshing the Postfix mail system

root@website:/etc/postfix# printf 'Subject: test\r\n\r\npassed' | sendmail o...@email.com

root@website:/etc/postfix# tail -n 5 /var/log/syslog

Feb 19 15:10:10 website postfix/smtp[4266]: B167525D6C: local data error while talking to smtp.sendgrid.net[5.153.47.202]

Feb 19 15:10:11 website postfix/smtp[4266]: warning: hash:/etc/postfix/sasl_password is unavailable. open database /etc/postfix/sasl_password.db: No such file or directory

Feb 19 15:10:11 website postfix/smtp[4266]: warning: hash:/etc/postfix/sasl_password lookup error for "smtp.sendgrid.net"

Feb 19 15:10:11 website postfix/smtp[4266]: warning: B167525D6C: smtp_sasl_passwd lookup error

Feb 19 15:10:11 website postfix/smtp[4266]: B167525D6C: to=<o...@emial.com>, relay=smtp.sendgrid.net[5.153.47.203]:2525, delay=0.39, delays=0.02/0/0.38/0, dsn=4.3.0, status=deferred (local data error while talking to smtp.sendgrid.net[5.153.47.203])

Thanks for your help

Adam