Run this on your terminal to change old commits user.email

change-commits-email.sh

# Taken from -> https://www.git-tower.com/learn/git/faq/change-author-name-email/
git filter-branch --env-filter '
WRONG_EMAIL="[email protected]"
NEW_NAME="YOUR GOOD NAME"
NEW_EMAIL="[email protected]"

if [ "$GIT_COMMITTER_EMAIL" = "$WRONG_EMAIL" ]
then
    export GIT_COMMITTER_NAME="$NEW_NAME"
    export GIT_COMMITTER_EMAIL="$NEW_EMAIL"
fi
if [ "$GIT_AUTHOR_EMAIL" = "$WRONG_EMAIL" ]
then
    export GIT_AUTHOR_NAME="$NEW_NAME"
    export GIT_AUTHOR_EMAIL="$NEW_EMAIL"
fi
' --tag-name-filter cat -- --branches --tags