How do I add an SPF record? (Note that the SPF format has been deprecated due to the DNS RFC )

 How do I add an SPF record?

Sender Policy Frame (SPF) record specifies the list of approved hostnames (or IPs) from where email can originate for a particular domain.

To set up an SPF record:

1. Log into your Cloudflare Account. 
2. From the drop-down on the top left, select your domain.
3. Click the DNS app at the top of the page.
4. Under DNS Records, complete the fields for your TXT record, including your SPF values record (see image below). 
5. Choose TXT. Enter the Name of the record and its corresponding value.
   
6. (optional) Add your SPF format record string under the value section and click Add Record. Note that the SPF format has been deprecated due to the DNS RFC and thus, you should always have at least the TXT record definition present, even if you use the SPF type.

More information on SPF record syntax and formatting is found below.
The mechanisms can be prefixed with one of four qualifiers:

Prefix	Qualifier
+	Pass
-	Fail
~	Soft Fail
?	Neutral

Evaluation of an SPF record can return any of these results:

Pass	Explanation	Intended action
Pass	The SPF record designates the host to be allowed to send.	Accept
Fail	The SPF record has designated the host as NOT being allowed to send.	Reject
SoftFail	The SPF record has designated the host as NOT being allowed to send but is in transition.	Accept but mark
Neutral	The SPF record specifies explicitly that nothing can be said about the validity.	Accept
None	The domain does not have an SPF record or the SPF record does not evaluate to a result.	Accept
PermError	A permanent error has occurred (e.g. badly formatted SPF record).	Unspecified
TempError	A transient error has occurred.	Accept or reject

For more information about SPF Record Syntax, see, Open SPF project - syntax.
If you're unsure, double check what the value should be with your mail service provider.
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