To send me GPG-encrypted email at bandali@kelar.org (or any of my other addresses listed below) you can encrypt your message using my GPG public key:
$ gpg --dry-run --import --import-options=import-show \
--keyid-format=long --with-fingerprint bandali-pubkey.txt 2>/dev/null
pub rsa4096/A21A020248816103 2018-10-17 [C] [expires: 2025-01-04]
Key fingerprint = BE62 7373 8E61 6D6D 1B3A 08E8 A21A 0202 4881 6103
uid Amin Bandali <bandali@kelar.org>
uid Amin Bandali <bandali@gnu.org>
uid Amin Bandali <mab@gnu.org>
uid Amin Bandali <bandali@uwaterloo.ca>
uid Amin Bandali <bandali@csclub.uwaterloo.ca>
uid Amin Bandali <amin@shemshak.org>
uid Amin Bandali <abandali@uwaterloo.ca>
uid Amin Bandali <abandali@csclub.uwaterloo.ca>
uid Amin Bandali <amin.bandali@savoirfairelinux.com>
uid Amin Bandali <amin.bandali@canonical.com>
uid Amin Bandali <bandali@canonical.com>
uid Amin Bandali <bandali@ubuntu.com>
uid Amin Bandali <bandali@gnu.ca>
uid Amin Bandali <bandali@debian.org>
sub rsa4096/8B44A0CDC7B956F2 2018-10-17 [S] [expires: 2025-01-04]
sub rsa4096/1D52D14EBCF3BE08 2018-10-17 [E] [expires: 2025-01-04]
sub rsa4096/4040DFEC6EC13F3A 2018-10-17 [A] [expires: 2025-01-04]
If you're not sure how to send encrypted email and would like to learn more, the email self-defence guide by the Free Software Foundation is a great place to start.