On July 15, 2015 1:54:32 PM EDT, jannisohms@xxxxxxx wrote: >Iam currently trying to implement a parser for spf . to achive this I >took the grammar defined in RFC 4408 and added some parts of RFC 2234 >and RFC2822. I use aparse 2.5 to build my parser. I used the following >grammar. I would recommend using RFC 7208 instead. There were some ABNF changes made, so maybe that will help and even if it doesn't, you'll be working off the current version. Scott K