SPF, or Sender Policy Framework, is a DNS-based technique aimed at stopping sender address forgery on emails. If you’re using ~all in yours and you’re not actively in the process of migrating over to using SPF, you’re doing it wrong. The War Of The Worlds Flac. (Yes, Google, Apple, Microsoft, that includes all of you too!) The above-listed tech giants all have ~all at the end of their SPF records, which you’re only supposed to use for domains that are transitioning. Transitioning in this case meaning they’re in the process of implementing SPF, but don’t dare make a hard Fail statement about hosts which do not pass the check. True, the official RFC (, see section 2.5.5) doesn’t state it this way explicitly, somehow that got a little lost from earlier drafts, but that doesn’t change the fact it was never meant to be used indefinitely. Not only does openspf.org have the following to say about it on their “”: Result: SoftFail Explanation: The SPF record has designated the host as NOT being allowed to send but is in transition Intended action: accept but mark but Julian Mehnle, one of the people who helped draft SPF, in 2008 that ~ has always been meant as a tool for testing during roll-out, providing some pretty hard to argue facts to go along with his statement: ~ was meant as a tool for testing during roll-out.
SPF soft fail when sending E-Mails to a. Of my sender domain nl.nix. SPF: softfail (google.com: domain of transitioning alle.
SPF softfail domain does not designate IP as permitted sender. Softfail (google.com: domain of transitioning xx@mydomain does not designate. Mail sent from my PHP is not delivered to some clients and this I am suspecting could be due to SPF test returning a softfail with domain of transitioning. How to Designate an IP Address as Permitted Sender. If you have your own domain handling email. Spf=softfail (google.com: domain of transitioning.
