It appears that Al Iverson via mailop <aiver...@wombatmail.com> said: >If you've got any evidence of x= in the wild that you care to share, >thank you kindly in advance!
I've been collecting the DKIM signatures of mail that lands in my personal mailboxes. Since May there are 19,000 signed messages of which about 5000 have x=. Here's the most common signing domains. I put x= on my own mail with an expiration time of a week. I figure if you haven't looked at the signature by then, too bad. R's, John 1813 gmail.com 217 messagingengine.com 158 google.com 103 yahooinc.com 100 sdaoden.eu 86 junc.eu 84 slavino.sk 77 ccc.com 75 amazon.com 70 protonmail.com 49 identity.digital 46 dartmouth.edu 44 fastmailteam.com 40 mailchannels.com 40 bsdimp-com.20230601.gappssmtp.com 40 allstar2-org.20230601.gappssmtp.com 38 fastmail.com 37 shinkuro-com.20230601.gappssmtp.com 35 m3aawg-admin.org 34 hendrickx.be 33 elistx-com.20230601.gappssmtp.com 30 case.edu 29 site24.it 28 valimail.com 27 googlegroups.com 26 protonmail.ch 26 makerlisp.com 26 iitbombay-org.20230601.gappssmtp.com 25 tekmarc.com 24 kumari.net 23 dm.de 22 umn.edu 22 pch.net 22 aplushitechs-com.20230601.gappssmtp.com 21 kev009.com _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
