Sender Policy Framework (SPF) Parameters

Created
2012-04-17
Last Updated
2014-04-29
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Registry included below

Modifier Names

Registration Procedure(s)
Specification Required
Reference
[RFC6652]
Available Formats

CSV
Modifier Reference Status
exp [RFC7208] Current
redirect [RFC7208] Current
ra [RFC6652] Current
rp [RFC6652] Current
rr [RFC6652] Current