PGP

You are invited to send me encrypted mail using my PGP key, which can also be found on well connected key servers, with id 0x188e3f108c693450 and fingerprint 6FC8 4DA0 8920 932D 34DD CBCD 188E 3F10 8C69 3450.

If you want to learn how to use PGP, check out the good tutorial on Riseup or read the free Basic Internet Security e-book.