Cached: <a href="http://webcache.googleusercontent.com/search?q=cache:http://www.brokenbitstream.com/gmail-spf-policy" rel="nofollow">http://webcache.googleusercontent.com/search?q=cache:http://...</a><p>TL;dr<p><i>Ultimately, the lessons I took away from my own experience are these:<p>If you haven’t already created an SPF record for your domain, do so.
If your mail server allows its users to forward mail off-site, then implement SRS remailing on it ASAP.</i><p>Note to author: it's better to put the conclusion at the beginning instead of burying it 1000 words down. <i>What</i> you learned is more important than <i>how</i> you learned it, even though the latter ultimately validates the former.