[Dovecot] Problem with MailServer Testing.

Hi, I just set up two machine.One is installed with AntiSpam Quarantine Management and Anti Spam components. However, another machine is installed as Mail Server (installed:OpenLDAP,pam,dovecot mail server,sendmail & squirrelmail). Both machine can run now. I want to do some testing now..i am using the client mail Netscape. My question is: that the email server is working)

1. how can i create a user and try to send a mail in and out? (to test

2.how can i test the antispam is working or not? (to test that wehther the spam will go into the AntiSpam QUarantine Management

Hope to hear from your reply... As i am vry new to linux and antispam, mail thingie.... Appreciate your reply!

Regards,

Allen