You are right i am using the IMAP.
Also enabled the port 465 as submission port as guided in
Mail client Configuration - Zimbra :: Wiki
but now during SMTP test in outlook2010 configuration
it is asking for the user ID and password. It's not accepting
the credentials i have. I have also checked the button for
"use same setting as my incoming mail server". But still it's asking for user id and password.
At server end in maillog i am getting the warning "postfix/smtpd[4450]: warning: unknown[xxx.xxx.xxx.xxx]: SASL LOGIN authentication failed".
Now, master.cf file looks like:
# ================================================== ========================
smtp inet n - n - - smtpd
#submission inet n - n - - smtpd
# -o smtpd_etrn_restrictions=reject
# -o smtpd_client_restrictions=permit_sasl_authenticate d,reject
465 inet n - n - - smtpd
-o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes
#submission inet n - n - - smtpd
# -o smtpd_etrn_restrictions=reject
# -o smtpd_enforce_tls=yes -o smtpd_sasl_auth_enable=yes
#628 inet n - n - - qmqpd