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http://www.protodave.com/tools/dkim-key-checker/
- A good one-stop shop for validation is Email Stuff.
- Need help creating your SPF record? Try this interactive wizard at SPFWizard.com
- I’ve setup both a SPF and DKIM Key now what? Once you have added the SPF record, you can verify it is setup correctly by using a tool like mxtoolbox.com. http://www.mxtoolbox.com/spf.aspx
- Another great validation tool, it has more advanced checking. http://www.kitterman.com/spf/validate.html
- Another great validation tool. http://emailstuff.org/
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