Sendmail problem

Jeg får følgende problem når jeg prøver at sende med mail();

Feb  4 12:11:07 localhost sendmail[3597]: l14BB7Kc003597: from=www, size=235, class=0, nrcpts=1, msgid=<200702041111.l14BB7Kc003597@localhost.localdomain>, relay=www@localhost
Feb  4 12:11:07 localhost sendmail[3600]: l14BB7mF003600: from=<www@localhost.localdomain>, size=467, class=0, nrcpts=1, msgid=<200702041111.l14BB7Kc003597@localhost.localdomain>, proto=ESMTP, daemon=MSP-v4, relay=localhost.localdomain [127.0.0.1]
Feb  4 12:11:07 localhost sendmail[3597]: l14BB7Kc003597: to=min@email.net, ctladdr=www (1001/1001), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30235, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (l14BB7mF003600 Message accepted for delivery)
Feb  4 12:11:07 localhost sendmail[3602]: l14BB7mF003600: to=<min@email.net>, ctladdr=<www@localhost.localdomain> (1001/1001), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=120467, relay=mail2.surftown.dk. [212.97.132.42], dsn=5.2.2, stat=Service unavailable
Feb  4 12:11:07 localhost sendmail[3602]: l14BB7mF003600: l14BB7mF003602: DSN: Service unavailable
Feb  4 12:11:07 localhost sendmail[3594]: l14BB6JP003594: to=root, delay=00:00:01, xdelay=00:00:01, mailer=local, pri=30000, dsn=2.0.0, stat=Sent
Feb  4 12:11:15 localhost sendmail[3602]: l14BB7mF003602: to=root, delay=00:00:08, xdelay=00:00:08, mailer=local, pri=30000, dsn=2.0.0, stat=Sent