When we create a commit in Git we get the author field listing the author’s name and email address. There are occasions where maybe an author is using different email addresses or names and we’d like to “fix” the commits to show the current or correct information for a commit.

Just add a file named .mailmap into the root folder of your project which contains the name of an author along with any email addresses that are to link to that author, for example

Bruce Dickinson  <bruce@im.com> <bruce@samson.net>

See mailmap for more information.