how to configure default submit workflow in ts65?

System

hi,there,
I am currently using teamsite workflow function. I want to use mail notificaiotn for " configurable_author_submit.wft", so I config the iw.cfg as following:
[iwsend_mail]
maildomain=xxxxxxxx.com
mailserver=smtp.xxxxxxxxxxxxx.com
use_mapping_file=true
email_mapping_file=C:\Interwoven\TeamSite\local\config\wft\email_map.cfg
debug_output=c:/tmp/iwsend_mail.log

since the useid is not same as use email address, I use email_map.cfg to map useid and email.

then modify the configurable_author_submit.cfg file to set
email_notification_to_author=yes
email_notification_to_reviewer=yes

seems everthing is ok, then I begin workflow-author submit.
workflow runs well, but I cannot reveive the notification mail.
why?

can you give me some suggestion?

I am sure the mail server,maildomain is correct.
besides, I check the tech article, one said we should use iwsend_mail.ipl instead of iw_solution_mail.ipl since the latter will not check the email_map.cfg .
how can I use iwsend_mail.ipl in configurable_author_submit?