If your e-mail provider supports it, Customize From Address allows you to make a one-off minor alteration to your From address without having to create a new identity in Account Settings. For example, if your From address is John Doe <john@example.com> you may want to change it to John Doe <john+doe@example.com> or John <john@example.com>.
Ma yella asaǧǧaw-inek n yimayl yessefrak-it, Aggan n tensa n umazan ad isireg asnifel meẓẓiyen n tensa yinek n umazan war ma terniḍ tamagit tamaynut deg iɣewwaṛen n umiḍan. Amedya, ma yella tansa n umazan John Doe <john@example.com> tzemreḍ ahat tad tesnifleḍ ɣer John Doe <john+doe@example.com> neɣ John <john@example.com>.