Date: Fri, 13 Jul 2007 15:22:06 +0700 From: vuthecuong <cuongvt@fpt.vn> To: Olivier Nicole <on@cs.ait.ac.th> Cc: freebsd-questions@freebsd.org Subject: Re: is is able to setting up DNS server reverse lookup with DynamicIP? Message-ID: <4697362E.8010608@fpt.vn> In-Reply-To: <200707130728.l6D7SfBA086091@banyan.cs.ait.ac.th> References: <46970917.3030502@fpt.vn> <200707130536.l6D5akxS070187@banyan.cs.ait.ac.th> <46971201.8030101@fpt.vn> <200707130552.l6D5qEM7071933@banyan.cs.ait.ac.th> <4697170E.3000909@fpt.vn> <200707130728.l6D7SfBA086091@banyan.cs.ait.ac.th>
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Olivier Nicole wrote: >> But my postfix only can receive mails from freebsd-questions mailing >> list, it can not send mail to this. >> > > There is another thing you have to consider. As it is explained in > http://www.bsdforums.org/forums/showthread.php?p=265093#post265093 > your dynamic IP has been black listed (the IP was used before by > someone else who sent SPAM, so now the IP is in a list of bad guys and > many mail server will refuse to receive emails from your IP). > > So it is really a better idea that you sent all your email thought FPT > email server. > > Best regards, > > Olivier > > OK I understood, this is one lession I learned today: In order to run "real" mail server, fixed IP address for forward and reverse DNS is must-have. I will choose method of relaying through ISP though I prefer the first one. Tnx you very much.
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