On Thu, Aug 12, 2010 at 6:42 PM, Sean Martin <seanmarti...@gmail.com> wrote: > Do you need a separate SPF record for each sending domain even if they're > hosted within the same messaging environment?
SPF records let a domain specify policies on who is permitted to use that domain to send mail. For example, SPF records let <example.com> specify who can send mail claiming to be from the <example.com> domain. So the messaging environment doesn't come into play at all. If you have <example.com> and <example.net>, those are two different domains. A receiver checking SPF for <example.com> has no way of knowing that <example.net> is using the same messaging environment. In other words: Yes. :-) -- Ben
