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Old 28th March 2013, 18:53
arraken arraken is offline
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If I dont grep for the IP and just use "tail -f /var/log/mail.log" i get this within seconds:

Code:
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<daijimmy@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<dd3717383@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<demmy_714@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<dmwv@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<dufeichun@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<ecjh70513@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<edesw@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<erica19840721@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<f68291@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<fegia@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<fermilco@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<fish690617@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<gamale@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<herc31@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<jing910330@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<k079618@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<kelly5211@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<tcby12345@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<video95025@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<weisau789@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<whogamall@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: 185FE21B11BD: to=<wyukang@yahoo.com.tw>, relay=none, delay=12736, delays=12475/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a22826765@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a228267748@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a22826956@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a228269877@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a22827053@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a22827127@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a22827140@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a228271420@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a228272000@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a22827217@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a2282721@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a228272981@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a228274191@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:32 server1 postfix/qmgr[3936]: A19B721B1817: to=<a22827465@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/qmgr[3936]: A19B721B1817: to=<a228275222@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/qmgr[3936]: A19B721B1817: to=<a228275464@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/qmgr[3936]: A19B721B1817: to=<a22827606@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/qmgr[3936]: A19B721B1817: to=<a22827612@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/smtpd[2454]: 08E3E25307F6: client=unknown[90.146.13.50], sasl_method=LOGIN, sasl_username=account@domainOnMyServer.at
Mar 28 17:44:33 server1 postfix/smtpd[2620]: 098A425307F7: client=unknown[90.146.13.50], sasl_method=LOGIN, sasl_username=account@domainOnMyServer.at
Mar 28 17:44:33 server1 postfix/qmgr[3936]: A19B721B1817: to=<a22827715@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/qmgr[3936]: A19B721B1817: to=<a2282777@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/qmgr[3936]: A19B721B1817: to=<a228279328@yahoo.com.tw>, relay=none, delay=11737, delays=11476/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/smtpd[2708]: 0E69425307F8: client=unknown[90.146.13.50], sasl_method=LOGIN, sasl_username=account@domainOnMyServer.at
Mar 28 17:44:33 server1 postfix/smtpd[2585]: 0F80225307F9: client=unknown[90.146.13.50], sasl_method=LOGIN, sasl_username=account@domainOnMyServer.at
Mar 28 17:44:33 server1 postfix/smtpd[2398]: 0F99425307FA: client=unknown[90.146.13.50], sasl_method=LOGIN, sasl_username=account@domainOnMyServer.at
Mar 28 17:44:33 server1 postfix/qmgr[3936]: 1780821B1722: to=<6v2g@yahoo.com.tw>, relay=none, delay=11930, delays=11669/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/qmgr[3936]: 1780821B1722: to=<a0956672213@yahoo.com.tw>, relay=none, delay=11930, delays=11669/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/qmgr[3936]: 1780821B1722: to=<a28336245@yahoo.com.tw>, relay=none, delay=11930, delays=11669/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/qmgr[3936]: 1780821B1722: to=<a58111207@yahoo.com.tw>, relay=none, delay=11930, delays=11669/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Mar 28 17:44:33 server1 postfix/qmgr[3936]: 1780821B1722: to=<a_better_living@yahoo.com.tw>, relay=none, delay=11930, delays=11669/261/0/0, dsn=4.3.0, status=deferred (unknown mail transport error)
Can anyone help, or explain what exactly is going on? it's real urgent, considering that the server just crashed a few minutes ago, and i have some live sites running on it. I would also be glad for some kind of a quick fix (just ban that one ip or something?)

Last edited by arraken; 30th March 2013 at 11:30.
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