On 31/01/12 09:32, Oliver Howe wrote: > Does anyone have any experience of using DMARC?
Nope. > See http://dmarc.org/overview.html Looks interesting. > http://www.returnpath.net/blog/intheknow/2012/01/return-path-joins-with-gmail-aol-yahoo-and-microsoft-to-found-dmarc-org-to-help-safeguard-consumers-brands-and-isps-from-phishing/ > and http://returnpath.net/commercialsender/domainassurance/dmarc/ > > It looks like it is some kind of DNS record that checks if a domain > has SPF and DKIM. If so, I guess a filter could be added to my inbound > SMTP servers so that messages are actioned according to the DMARC > policy (quarentine, reject etc) returned by the sender domains DNS > record. My SPF record already states that *all* email from my domain must come from a certain server, and the ADSP record for my domain already states that *all* email from my domain must have a valid DKIM signature: mike@alfa:~$ dig +short txt grepular.com "v=spf1 include:spf.grepular.com -all" mike@alfa:~$ dig +short txt _adsp._domainkey.grepular.com "dkim=all" mike@alfa:~$ -- Mike Cardwell https://grepular.com/ http://cardwellit.com/ OpenPGP Key 35BC AF1D 3AA2 1F84 3DC3 B0CF 70A5 F512 0018 461F XMPP OTR Key 8924 B06A 7917 AAF3 DBB1 BF1B 295C 3C78 3EF1 46B4
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