RFC 6851: The IMAP MOVE Extension
Defines the MOVE command for atomically moving messages between IMAP folders without a COPY+EXPUNGE sequence.
Email Protocol
RFC 9051: Internet Message Access Protocol (IMAP) Version 4rev2
The current IMAP standard for online mailbox access, folder management, and message retrieval.
RFC 821: Simple Mail Transfer Protocol
Original SMTP RFC from 1982 by Jon Postel. Defined the core SMTP command set still in use today.
