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Comment spécifier plusieurs domaines inclus dans un enregistrement SPF ?

ayi

Our business email is hosted on Google apps. De plus, our web server may aussi send email. Currently our SPF record in DNS looks like this:

domain.com.    IN   TXT    "v=spf1 a include:_spf.google.com -all"

Ceci est tous fine, however now we've outsourced our email list management to another company et we need to include a second domain avec include. So, Je suis looking for something like:

domain.com.    IN   TXT    "v=spf1 a include:_spf.google.com include:otherdomain.com -all"

What is le correct syntax for this?
Many thanks!

ayi

All SPF mechanisms, including include, can be used multiple times, separated by spaces:

"v=spf1 include:_spf.google.com include:otherdomain.com -all"

Evaluation of include works this way:

If le included data returned PASS, alors le include itself generates a result (par exemple, include:foo.bar generates a PASS, mais -include:foo.bar generates a FAIL).

If le included data returned FAIL ou NEUTRAL, alors le include does pas contribute to le result at all, et processing goes to votre suivant mechanism.

See SPF record syntax et RFC 7208.

(Note that redirect= is pas a mechanism mais a global modifier, et cannot be repeated this way.)