Re: [dmarc-discuss] [Newbie warning] Both spf and dkim?

2015-08-12 Thread Carlos P via dmarc-discuss
Thank you everybody for your fast and clear answers. I've understood why I should wait for dkim while reading the reports... Carlos Pantelides @dev4sec seguridad-agile.blogspot.com El Miércoles, 12 de agosto, 2015 15:34:00, Tim Draegen t...@eudaemon.net escribió: Hi Carlos, it might

Re: [dmarc-discuss] [Newbie warning] Both spf and dkim?

2015-08-12 Thread Franck Martin via dmarc-discuss
DKIM fails for 0.5% of cases when it should not fail, cause the protocol is really complex and until DMARC such bugs were hard to find... SPF is an easy protocol, not many bugs... however does not work with DMARC when forwarding emails (the aligned part that is). So for p=none you don't need to

Re: [dmarc-discuss] [Newbie warning] Both spf and dkim?

2015-08-12 Thread Tim Draegen via dmarc-discuss
Hi Carlos, it might help to flip the perspective around to receivers. Receivers are looking for any positive signal that a piece of email can be connected to a domain. If that signal is due to SPF, great. If that signal is due to DKIM, that's great too. If both SPF and DKIM provide signals,

Re: [dmarc-discuss] [Newbie warning] Both spf and dkim?

2015-08-12 Thread Paul Rock via dmarc-discuss
Hi there Carlos - The main reason people say you should have both is that many customers do things completely legitimately (like mail forwarding) that break SPF. Any of those messages that lack DKIM will automatically fail DMARC, and customers will wonder what the heck happened to their mail,

Re: [dmarc-discuss] [Newbie warning] Both spf and dkim?

2015-08-12 Thread Terry Zink via dmarc-discuss
[mailto:dmarc-discuss-boun...@dmarc.org] On Behalf Of Carlos P via dmarc-discuss Sent: Wednesday, August 12, 2015 10:47 AM To: dmarc-discuss@dmarc.org Subject: [dmarc-discuss] [Newbie warning] Both spf and dkim? Hello, I am new to DMARC and have a question: It is necesary to setup both SPF and DKIM