Easily Locate Email Messages in Gmail With Rfc822msgid
Fleeting- External reference: https://www.labnol.org/internet/find-gmail-message-by-rfc8222/32020/
rfc8222msgid:xyz@mail.gmail.com will return the exact email in search results
— https://www.labnol.org/internet/find-gmail-message-by-rfc8222/32020/