Configuring git send-email

Sending patches via email can be greatly simplified by using git send-email command. You can install it (on Debian-based distribution) by apt install git-email. For general usage and overview, look at e.g. this howto.

To configure git to send email you have several options:

Use your private email account. For gmail, this is documented in the git send-email man page.
Use CVUT mail server as shown below.

Configuring CVUT mail server

git config --global sendemail.smtpserver mail.cvut.cz
git config --global sendemail.smtpServerPort 587
git config --global sendemail.smtpEncryption tls
git config --global sendemail.smtpUser sojkam1@cvut.cz

Of course, replace sojkam1 with your login name.

Remembering a password

Above shown configurations will ask you for a password every time you will send something. This is annoying. Luckily, git allows to remember passwords in a secure (encrypted) storage provided by your desktop environment (at least on Linux). This secure storage has to be manually configured. The commands below should work for a Debian-based distributions:

sudo apt install libsecret-1-dev
sudo make -C /usr/share/doc/git/contrib/credential/libsecret
git config --global credential.helper /usr/share/doc/git/contrib/credential/libsecret/git-credential-libsecret