If you want to include our e mail services in your SPF record add the following:
If you are using our e-mail services (incl. SMTP), but it should be possible to use other services, then the entire entry should look like this (which is also our default setting):
"v=spf1 include:_spf.domeneshop.no ~all"
Note: There is a tilde (~) in front of "all", not a hyphen (-). If you want to prohibit other e-mail services from sending on behalf of your domain, you must use a hypen (-):
"v=spf1 include:_spf.domeneshop.no -all"
Be sure to include any other e-mail services you use (e.g. newsletters). Your other provider will have information about this.
Note: Some email systems are misconfigured to reject e-mail, even though the SPF record states that it is acceptable for e-mail to come from other systems than those specified.