Iv recently deployed SBS2011 and we are in the process of migrating our email from Yahoo Business to our exchange server. Unfortunately i have to use the pop connector in exchange because many remote users rely on yahoo's pop/smtp email hosting. Our exchange server isn't hardened up yet and Im not comfortable opening up the web faced OWA and remote stuff quite yet. The problem is yahoo doesnt have a smart host and email is getting black listed because reverse DNS snoops on the domain is resolving to Yahoos servers and not ours obviously. I spoke with Yahoo and they told me to give them the SPF record and they would add it to DNS on their servers. Here is what I think I should give them:
v=spf1 mx include:<my static ip address> ~all
Will this work?
My domain is hosted by Yahoo so my MX records curretnly point to their servers. I'll change it once Exchange is ready to completely host mail but for now it has to stay....