Microsoft has a useful tool for creating SPF records.
It also queries the domain that you put in and nicely formats the results.
Of course, most of us are just “dig text domain” from the CLI or Cygwin on Windows, but it’s nice to have another method as well.
UPDATE There are also some helpful comments from HostGator.
If you imported your rules from a previous version of Outlook and somehow all of them or many of them got marked “and on this computer only” and they are not processing correctly, you can fix them by one by one opening each rule, and re-selecting the destination folder (it should already be highlighted). Then, clicking “Finish.” The “on this computer only” should have dropped from the rule description. Then click “Apply” to save all your changes.
Oh, the pain of the Microsoft Outlook Rules and Alerts editor!
We have been doing a few massive rollouts of Office 2010, and these are a few places we’ve had recourse to whilst doing the uninstalls and systems cleans before the installs (mostly clearing off Office 2003, some actually doing an upgrade, but also lots of Office 2007, Office 2010 Starter, and various combinations of all three versions had to be dealt with!).