Adam Sampson's email bookmarkshttps://bookmarks.offog.org/ats/emailAdam Sampson2015-12-31T00:15:49ZFiles are hardhttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fdanluu.com%2Ffile-consistency%2F2015-12-31T00:15:49ZA comprehensive study of what might go wrong when trying to guarantee that data has been written to disk.DMARC.org - Domain-based Message Authentication, Reporting and Conformancehttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fdmarc.org%2F2013-07-20T14:00:59ZUsing DNS records to specify how SPF and DKIM should be applied to your domain -- you can set up a magic record and people receiving email will send you reports, which is kind of neat. On the downside, this doesn't solve the killer problems with SPF/DKIM (breaking legitimate forwarding and mailing lists)...MultiRBL.valli.org - Blacklist, Whitelist and FCrDNS check toolhttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fmultirbl.valli.org%2F2013-07-11T17:55:15ZSearch a large collection of spam-filtering systems. Neat -- although it turned out that wasn't the problem I was trying to solve!smoe.orghttps://bookmarks.offog.org/edit?url=http%3A%2F%2Fwww.smoe.org%2F2009-06-04T17:11:06ZMailing lists for various bands.Are you looking for something ?https://bookmarks.offog.org/edit?url=http%3A%2F%2Fhomepages.tesco.net%2F%7EJ.deBoynePollard%2F2009-02-04T13:59:19ZLots of information on mail and DNS, among other things (written in a decent approximation of Dan Bernstein's forthright style). This is the site with the handy reference to different mbox formats.