Quick Tip: Don't over include: in your SPF

Are you frustrated by an SPF record that is not valid?

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One of the most common reason an SPF record will break is because it is including too many mechanisms.

Are you looking for a quick win to make sure your SPF record is valid? 

 

Don't use the include:salesforce.com mechanism but instead use the include:_spf.salesforce.com mechanism.

This reduces the number of look up mechanisms being included from 8 to 2! 

 

And using include:salesforce.com approves Gmail IP's which does open your domain up for spoofing across the Gmail network.

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The Salesforce Help article also makes this recommendation:

https://help.salesforce.com/apex/HTViewSolution?urlname=Sender-Policy-Framework-SPF-Salesforce-com-S...

 

Reach out to Marketo Support if this doesn't solve your SPF anguish.  There are SPF experts at Marketo at Marketo who can get you on a path of Validation.

 

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