Hi eduardo,
thanks a lot for the feedback.
Although I didn't infer to those steps. I just made a test using a registered server with all the 3 steps succeeded, and got the follow log at "/var/log/mail.log"
what should i do, in order to have certainty, at least from my side(mail sender side), that the email arrives at its destiny?
it doesn't behave very nice, when i try to send to more than 2 emails.
Jul 10 02:14:03 localhost postfix/smtpd[27707]: connect from localhost[127.0.0.1]
Jul 10 02:14:03 localhost postfix/smtpd[27707]: 7AE0A2816E: client=localhost[127.0.0.1]
Jul 10 02:14:03 localhost postfix/cleanup[27708]: 7AE0A2816E: message-id=20070710051403.7AE0A2816E@ieee.ufba.br
Jul 10 02:14:03 localhost postfix/smtpd[27707]: disconnect from localhost[127.0.0.1]
Jul 10 02:14:03 localhost postfix/qmgr[31145]: 7AE0A2816E: from=iuri.sampaio@computer.org, size=628, nrcpt=1 (queue active)
Jul 10 02:14:03 localhost postfix/smtpd[27707]: connect from localhost[127.0.0.1]
Jul 10 02:14:03 localhost postfix/smtpd[27707]: D387F2816F: client=localhost[127.0.0.1]
Jul 10 02:14:03 localhost postfix/cleanup[27708]: D387F2816F: message-id=20070710051403.D387F2816F@ieee.ufba.br
Jul 10 02:14:03 localhost postfix/smtpd[27707]: disconnect from localhost[127.0.0.1]
Jul 10 02:14:03 localhost postfix/qmgr[31145]: D387F2816F: from=iuri.sampaio@computer.org, size=632, nrcpt=1 (queue active)
Jul 10 02:14:04 localhost postfix/smtpd[27707]: connect from localhost[127.0.0.1]
Jul 10 02:14:04 localhost postfix/smtpd[27707]: 3B57628170: client=localhost[127.0.0.1]
Jul 10 02:14:04 localhost postfix/cleanup[27708]: 3B57628170: message-id=20070710051404.3B57628170@ieee.ufba.br
Jul 10 02:14:04 localhost postfix/qmgr[31145]: 3B57628170: from=iuri.sampaio@computer.org, size=620, nrcpt=1 (queue active)
Jul 10 02:14:04 localhost postfix/smtpd[27707]: disconnect from localhost[127.0.0.1]
Jul 10 02:14:05 localhost postfix/smtp[27690]: 7AE0A2816E: to=iuri_mailto:sampaio@hotmail.com, relay=mx2.hotmail.com[65.54.245.40], delay=2, status=sent (250 mailto:20070710051403.7AE0A2816E@ieee.ufba.br Queued mail for delivery)
Jul 10 02:14:05 localhost postfix/qmgr[31145]: 7AE0A2816E: removed
Jul 10 02:14:13 localhost postfix/smtp[27689]: D387F2816F: to=iuri_mailto:sampaio@yahoo.com.br, relay=none, delay=10, status=deferred (Host or domain name not found. Name service error for name=yahoo.com.br type=MX: Host not found, try again)
Jul 10 02:14:34 localhost postfix/smtp[27709]: connect to hormel.ieee.org[140.98.193.224]: Connection timed out (port 25)
Jul 10 02:15:04 localhost postfix/smtp[27709]: connect to lemroh.ieee.org[140.98.193.30]: Connection timed out (port 25)
Jul 10 02:15:04 localhost postfix/smtp[27709]: 3B57628170: to=iuri_mailto:sampaio@ieee.org, relay=none, delay=60, status=deferred (connect to lemroh.ieee.org[140.98.193.30]: Connection timed out)