Publish exchange 2007 server owa, active sync using dynamic dns

Hi All
  I have exchange 2007 server that was just used internally, now I need to publish it external and use owa, active sync etc using my Fortigate FW, i have the internet from ISP but I dont have static IP address, I will be using dynamic dns, please advise
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Will SzymkowskiSenior Solution ArchitectCommented:
There is a good article on Exchange Server Pro regarding the setup of Dynamic DNS setup with Exchange server (see below link). However i would highly not recommend this as it is vary likely that you will get blocked for IP sender reputation issues, and become blacklisted.


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That will be a pain to configure. In addition to stuff covered in previously posted link, some receiving servers require that sender has properly configured PTR records. Otherwise the receiving mail server will reject the mail as spam.
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