after spamassassin installation I cannot send out email to external servers

Hi,
After I have installed spamassassing I cannot send out email to external addresses. I can receive emails from external addresses as well as from local users. I also can send out emails to the local users

After I try to send an email to external address (using outlook) I am getting the following error;

         550 5.7.1 <adam.gasior@gmail.com>... Relaying denied. Proper authentication required.



My /etc/mail/sendmail.mc look as follows:

divert(0)dnl
define(`_USE_ETC_MAIL_')dnl
include(`/usr/share/sendmail/cf/m4/cf.m4')dnl
VERSIONID(`$Id: generic-linux.mc,v 8.1 1999/09/24 22:48:05 gshapiro Exp $')
OSTYPE(`debian')dnl
DOMAIN(`debian-mta')dnl
dnl # Items controlled by /etc/mail/sendmail.conf - DO NOT TOUCH HERE
dnl undefine(`confHOST_STATUS_DIRECTORY')dnl            #DAEMON_HOSTSTATS
dnl # Items controlled by /etc/mail/sendmail.conf - DO NOT TOUCH HERE
DOMAIN(generic)dnl
INPUT_MAIL_FILTER(`spamassassin', `S=local:/var/run/sendmail/spamass.sock, F=,T=C:15m;S:4m;R:4m;E:10m')dnl
define(`confAUTH_MECHANISMS', `LOGIN PLAIN')dnl
TRUST_AUTH_MECH(`LOGIN PLAIN')dnl
FEATURE(`no_default_msa')dnl
DAEMON_OPTIONS(`Port=smtp, Name=MTA')dnl
DAEMON_OPTIONS(`Port=587, Name=MSA, M=Ea')dnl
MAILER(local)dnl
MAILER(smtp)dnl

Regards,

Adam Gasior