Gmail ignores dots in usernames. johndoe@gmail.com is the same as john.doe@gmail.com or j.o.h.n.doe@gmail.com .
New services are using generative AI to create realistic, human-like email addresses (e.g., jessica.r.martinez@proton.me ) that persist for exactly one session. These are harder for Gmail’s Shield AI to block because they mimic real patterns. gmail temp mail updated