Code:
Oct 10 16:05:01 ip-10-1-84-36 postfix/qmgr[23601]: 1A865418A9: from=<oracle@ip-10-10-10.101.ec2.internal>, size=491, nrcpt=1 (queue active)
Oct 10 16:05:01 ip-10-1-84-36 postfix/qmgr[23601]: 1957E418AA: from=<oracle@ip-10-10-10.101.ec2.internal>, size=491, nrcpt=1 (queue active)
Oct 10 16:05:01 ip-10-1-84-36 postfix/qmgr[23601]: 17A38418AB: from=<oracle@ip-10-10-10.101.ec2.internal>, size=491, nrcpt=1 (queue active)
Oct 10 16:05:01 ip-10-1-84-36 postfix/qmgr[23601]: 1BBF9418A8: from=<root@ip-10-10-10.101.ec2.internal>, size=493, nrcpt=1 (queue active)
Oct 10 16:05:01 ip-10-1-84-36 postfix/qmgr[23601]: 7FFDD418AC: from=<oracle@ip-10-10-10.101.ec2.internal>, size=491, nrcpt=1 (queue active)
Oct 10 16:05:01 ip-10-1-84-36 postfix/qmgr[23601]: 30B5E418A5: from=<root@ip-10-10-10.101.ec2.internal>, size=493, nrcpt=1 (queue active)
Oct 10 16:05:31 ip-10-1-84-36 postfix/smtp[25102]: connect to mail_smtp.domain.org[10.10.20.102]:25: Connection timed out
Oct 10 16:05:31 ip-10-1-84-36 postfix/smtp[25103]: connect to mail_smtp.domain.org[10.10.20.102]:25: Connection timed out
Oct 10 16:05:31 ip-10-1-84-36 postfix/smtp[25106]: connect to mail_smtp.domain.org[10.10.20.102]:25: Connection timed out
Oct 10 16:05:31 ip-10-1-84-36 postfix/smtp[25104]: connect to mail_smtp.domain.org[10.10.20.102]:25: Connection timed out
Oct 10 16:05:31 ip-10-1-84-36 postfix/smtp[25105]: connect to mail_smtp.domain.org[10.10.20.102]:25: Connection timed out
Oct 10 16:06:01 ip-10-1-84-36 postfix/smtp[25102]: connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out
Oct 10 16:06:01 ip-10-1-84-36 postfix/smtp[25105]: connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out
Oct 10 16:06:01 ip-10-1-84-36 postfix/smtp[25106]: connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out
Oct 10 16:06:01 ip-10-1-84-36 postfix/smtp[25103]: connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out
Oct 10 16:06:01 ip-10-1-84-36 postfix/smtp[25104]: connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out
Oct 10 16:06:01 ip-10-1-84-36 postfix/smtp[25102]: 1A865418A9: to=<myemail@domain.org>, relay=none, delay=3780, delays=3720/0.02/60/0, dsn=4.4.1,
status=deferred (connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out)
Oct 10 16:06:01 ip-10-1-84-36 postfix/smtp[25105]: 1BBF9418A8: to=<myemail@domain.org>, relay=none, delay=3794, delays=3734/0.04/60/0, dsn=4.4.1,
status=deferred (connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out)
Oct 10 16:06:01 ip-10-1-84-36 postfix/smtp[25106]: 7FFDD418AC: to=<myemail@domain.org>, relay=none, delay=3332, delays=3272/0.04/60/0, dsn=4.4.1,
status=deferred (connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out)
Oct 10 16:06:01 ip-10-1-84-36 postfix/smtp[25104]: 17A38418AB: to=<myemail@domain.org>, relay=none, delay=3407, delays=3347/0.03/60/0, dsn=4.4.1,
status=deferred (connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out)
Oct 10 16:06:01 ip-10-1-84-36 postfix/smtp[25103]: 1957E418AA: to=<myemail@domain.org>, relay=none, delay=3705, delays=3645/0.02/60/0, dsn=4.4.1,
status=deferred (connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out)
Oct 10 16:06:01 ip-10-1-84-36 postfix/error[25164]: 30B5E418A5: to=<myemail@domain.org>, relay=none, delay=6311, delays=6251/60/0/0, dsn=4.4.1,
status=deferred (delivery temporarily suspended: connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out)
Oct 10 16:10:01 ip-10-1-84-36 postfix/qmgr[23601]: B5C6C40129: from=<oracle@ip-10-10-10.101.ec2.internal>, size=494, nrcpt=1 (queue active)
Oct 10 16:10:01 ip-10-1-84-36 postfix/qmgr[23601]: B8F1341884: from=<oracle@ip-10-10-10.101.ec2.internal>, size=491, nrcpt=1 (queue active)
Oct 10 16:10:01 ip-10-1-84-36 postfix/error[25266]: B5C6C40129: to=<myemail@domain.org>, relay=none, delay=23751, delays=23751/0.02/0/0.01,
dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out)
Oct 10 16:10:01 ip-10-1-84-36 postfix/error[25267]: B8F1341884: to=<myemail@domain.org>, relay=none, delay=23715, delays=23715/0.02/0/0.01,
dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to mail_smtp2.domain.org[10.10.20.103]:25: Connection timed out)
Oct 10 16:20:01 ip-10-1-84-36 postfix/qmgr[23601]: 4DB8A4189F: from=<oracle@ip-10-10-10.101.ec2.internal>, size=491, nrcpt=1 (queue active)