Hello John, I do have a known set of sources and I specify them in the SPF TXT record.
My SPF TXT record includes blackberry's email servers. Jon -----Original Message----- From: John Levine [mailto:[email protected]] Sent: Friday, October 05, 2012 12:46 PM To: [email protected] Cc: [email protected] Subject: Re: [dmarc-discuss] DMARC setup to authorize Blackberry BIS emails >I have a question on how to get a DMARC policy to work when some of my >email is sent via blackberry BIS. That's easy -- you can't. DMARC policies can work well on domains whose mail is sent from a single set of fixed sources. They won't work at all on mail domains with live people who invariably send mail in all sorts of different ways that SPF and DKIM don't describe. But it's still worth publishing a DMARC record with p=none to collect the statistics. That's what I do, and I find out all sorts of interesting stuff. Regards, John Levine, [email protected], Primary Perpetrator of "The Internet for Dummies", Please consider the environment before reading this e-mail. http://jl.ly _______________________________________________ dmarc-discuss mailing list [email protected] http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
