Hi RIPE Database Working Group, In March 2017, the RIPE NCC implemented a requested DMARC change to this list < https://www.ripe.net/ripe/mail/archives/db-wg/2017-March/005514.html > The change was to enable the DMARC 'Wrap Message' setting in Mailman so that DMARC-enabled users could receive emails from the list sent via other DMARC-enabled users. Unfortunately, this caused some users to see emails come through as attachments, as well as various other compatibility issues with some mail clients. After consultation with the RIPE Database Working Group Co-Chairs, we have changed the Mailman setting to 'Munge the From address'. If you experience any emails from this mailing list as attachments from this point onwards, then please let me know. Many thanks, Adam Castle Web Services Manager RIPE NCC