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How/where to setup SPF and DKIM

I understand that SPF and DKIM are not specifically required at this point but nice to have(s).
DKIM - If my research is correct this gets setup on the actual email server?
SPF - OK. We use Time Warner for our ISP. We have static IP address. In order to have reverse DNS setup, we had to have Time Warner add it to their DNS servers. Is this the same case with SPF? I would create the TXT DNS entry, provide it to them and then they would have to put it on their server?

FYI: Our infrastructure is -
Exchange Server 2007 setup behind a Hardware firewall with only SMTP and HTTPS ports open and forwarded to the Exchange Server. External(firewall) static IP with MX record and reveres DNS setup

ASKER CERTIFIED SOLUTION

Sembee

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tfountain

ASKER

Well, I have implamented both of these for one of teh companies I support. They can now send mail to a clople large mail providers that they could not before (aol, yahoo).
Thanks

JernejS

HI,

how did you set-up DKIM on Exchange 2007?

nejc

Sembee

JernejS - this is an old question. Unlike a forum it is not possible to "bump" questions back up the list. The only people who will see your post are those that have already participated. Instead you should post your question as a new question in the Exchange Server Zone which will allow other experts the chance to see the question and respond.

Simon

tfountain

ASKER

http://technet.microsoft.com/en-us/library/aa996604(EXCHG.80).aspx