> GMail will leak your primary email address via the Return-Path and other email headers. Hmm, I just now sent from a Gmail alias to a non-Google account. Don

> GMail will leak your primary email address via the Return-Path and other email headers. Hmm, I just now sent from a Gmail alias to a non-Google account. Don't see my primary address anywhere in the received headers. Could the circumstances under which you see leakage be specific to some particular use case?