Can someone point me in the right direction on exactly what the difference between the following SPF tests are, please? I assume that SPF_PASS means the sending domain has an SPF record and the sending server IP matches. However, the description for SPF_FAIL, SPF_SOFTFAIL, and SPF_NEUTRAL are all the same. In which case does the sender domain not have an SPF record? Which one is there a record, but the sending server IP doesn't match? What is the fourth case that I'm missing?
Jason
