J'ai a quick question regarding SPF records: Do they need to be present for tous subdomains?
Lets say that J'ai a TXT record avec SPF info for domain.com
Let's aussi say that J'ai a seperate email domain for subdomain.domain.com
Will le SPF policy/info for domain.com aussi apply to le subdomain? Or do J'ai besoin de to ajoutez un separate TXT record for that too?
Les enregistrements SPF du domaine principal s'appliquent-ils aux sous-domaines ?
Re: Les enregistrements SPF du domaine principal s'appliquent-ils aux sous-domaines ?
Vous devez to have separate SPF records for chaque subdomain you wish to send mail from.
The suivant was originally posted on openspf.org, qui used to be a great resource for this kind of thing.
Latest link [http://www.open-spf.org/FAQ/The_demon_question/](http://www.open-spf.org/FAQ/The_demon_question/)
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The Demon Question: What about subdomains?
If I get mail from
pielovers.demon.co.uk, et il y a no SPF data for pielovers, should I
go back one level et test SPF for demon.co.uk? No. Each subdomain at
Demon is a différent customer, et chaque customer might have leur own
policy. It ne voudrait pas make sense for Demon's policy to apply to tous its
customers par défaut; si Demon wants to do that, it can set up SPF
records for chaque subdomain.
So le advice to SPF publishers is this: you should ajoutez unn SPF record
for chaque subdomain ou hostname that has an A ou MX record.
Sites avec wildcard A ou MX records should aussi have a wildcard SPF
record, of le form: * IN TXT "v=spf1 -all"
This makes sense - a subdomain may très well be in a différent geographical location et have a très différent SPF definition.
The 'include:' directive for SPF may be used to provide tous subdomains avec le même entries. Par exemple, on le SPF record for subdomain mailfrom.example.com enter 'include:example.com'. In this fashion whenever you mettez à jour le definition par exemple.com votre subdomains will automatically pick up le updated values.
The suivant was originally posted on openspf.org, qui used to be a great resource for this kind of thing.
Latest link [http://www.open-spf.org/FAQ/The_demon_question/](http://www.open-spf.org/FAQ/The_demon_question/)
>
The Demon Question: What about subdomains?
If I get mail from
pielovers.demon.co.uk, et il y a no SPF data for pielovers, should I
go back one level et test SPF for demon.co.uk? No. Each subdomain at
Demon is a différent customer, et chaque customer might have leur own
policy. It ne voudrait pas make sense for Demon's policy to apply to tous its
customers par défaut; si Demon wants to do that, it can set up SPF
records for chaque subdomain.
So le advice to SPF publishers is this: you should ajoutez unn SPF record
for chaque subdomain ou hostname that has an A ou MX record.
Sites avec wildcard A ou MX records should aussi have a wildcard SPF
record, of le form: * IN TXT "v=spf1 -all"
This makes sense - a subdomain may très well be in a différent geographical location et have a très différent SPF definition.
The 'include:' directive for SPF may be used to provide tous subdomains avec le même entries. Par exemple, on le SPF record for subdomain mailfrom.example.com enter 'include:example.com'. In this fashion whenever you mettez à jour le definition par exemple.com votre subdomains will automatically pick up le updated values.