权威例句
Post Office ProtocolPost Office ProtocolPost Office ProtocolPost Office Protocol - Version 3Post Office Protocol: Version 2A comparative study of Simple Mail Transfer Protocol (SMTP), Post Office Protocol (POP) and X.400 Electronic Mail ProtocolsMethod and apparatus for providing post office protocol 3 support for limited storage devicesPost Office Protocol: Version 2Post Office Protocol: Version 2The Post Office Protocol (POP3) Simple ...Some Observations on Implementations of the Post Office Protocol (POP3)Post Office Protocol (Pop)Post Office Protocol: Version 3: Extended service offerings