Iya mas di maillog seperti dibawah:
Jul 18 12 : 35 : 01 host postfix/smtp[19425]: 742EE37C235: to=<
[email protected]>, relay=gmail-smtp-in-v4v6.l.google.com[173.194.79.26]:25, delay=1.7, delays=0.51/0.07/0.76/0.34, dsn=2.0.0, status=sent (250 2.0.0 OK 1342589701 vh6si13726695pbc.260)