How can I enable SPF on Exchange 2003 and what do I need to do to make sure my users emails are not accidentally blocked. How does SPF actually work? Are there documentation on it?
After a lot of talking, system admins have entered SPF records to our domain. I have not yet been able to test this with domains that previously didn't receive our e-mails, as I do not want to keep bugging our customers, but I see the following: - mail sent from our domain to e.g. my personal gmail...