Can Not Login For SMTP Postix


I can not send email, my email client requests a different password but the password I’m providing is the correct one.

My mail log has:

ov 9 11:20:22 server postfix/smtpd[3712]: warning:[]: SASL LOGIN authentication failed: generic failure
Nov 9 11:20:24 server postfix/smtpd[3712]: disconnect from[] ehlo=2 starttls=1 auth=0/6 quit=1 commands=4/10

I’ve read elsewhere about an -r flag on saslauthd which appears to be set with this line:

OPTIONS="-m /var/spool/postfix/var/run/saslauthd -r"

Can anyone please help?