Contact

$ mail felix

The address is felix at giessmann dot net — written out because it is 1999 and the harvesters are relentless. For the impatient: felix@giessmann.net.

I read mail. I reply to most of it. I reply faster to mail that says what it wants in the first sentence.

$ gpg –recv-keys

Encrypted mail is welcome and, for anything touching client work, preferred.

Fingerprint

6D9C 0E29 898F 38E6 9D80  139C 036E DCD6 BCFE 650B

RSA 4096, created 2021-05-12, held on a smartcard. Current encryption, signing and authentication subkeys are Curve25519, rotated 2022-12-27.

Fetch it whichever way you trust most:

gpg --locate-keys felix@giessmann.net          # via WKD, this domain
gpg --keyserver keys.openpgp.org --recv-keys \
    6D9C0E29898F38E69D80139C036EDCD6BCFE650B
dig +short TXT giessmann.net | grep openpgp4fpr # the fingerprint, in DNS

The fingerprint is published in this domain’s DNS and on keys.openpgp.org. Two independent sources. Verify against both, then verify against neither and ask me in person, which is the only method that ever really worked.

$ finger –elsewhere

LinkedIn — where the professional version of me lives.
GitHub — where the impatient version does.
RSS — for notes, when there are any.

Guestbook

The guestbook is a mailto link. It has no database, no spam queue and no moderation policy, because it is a mailto link. This is the most robust guestbook I have ever operated.