Salesforce

SPF debugging

Someone mentioned on a mailing list that mail “from” intuit.com was being filed in the gmail spam folder, with the warning “Our systems couldn’t verify that this message was really sent by intuit.com“. That warning means that Gmail thinks it may be phishing mail. Given they’re a well-known financial services organization, I’m sure there is a lot of phishing mail claiming to be from them.
But I’d expect that a company the size of Intuit would be authenticating their mail, and that Gmail should be able to use that authentication to know that the mail wasn’t a phish.
Clearly something is broken somewhere. Lets take a look.
Looking at the headers, the mail was being sent from Salesforce, and (despite Salesforce offering DKIM) it wasn’t DKIM signed by anyone. So … look at SPF.
SPF passes:

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Salesforce SPF and now DKIM support

Salesforce has published a SPF record for sending emails from Salesforce for years and with the Spring ’15 release, they will provide the option to sign with DKIM.
The SPF record is straight forward, include:_spf.salesforce.com which includes _spf.google.com, _spfblock.salesforce.com, several IP address blocks, mx, and ends with a SoftFail ~all.
Salesforce Knowledge Article Number: 000006347 goes in-depth with information regarding their SPF Record.

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