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P1 標頭
comp., MS P1 header (" The information contained in an e-mail message that is required to send and deliver a message between messaging servers by using SMTP protocol commands. The message envelope contains the sender e-mail address and the recipient e-mail address information. Recipients never see the message envelope, because it is not part of the message content, and it is discarded when the message reaches its destination. The X.400 messaging standard equivalent to the message envelope is called the "P1 header." The message envelope is often referred to as the "P1 header.")
P2 標頭
comp., MS P2 header (A hidden section of an e-mail message. From the time a message is first created, information about it is added to the message header, including technical details, such as who created the message and the software used to compose it)
 Chinese thesaurus
P1 標頭
abbr., comp., MS ih1 gsMj
標頭: 2 phrases in 1 subject
Microsoft2