Internet mail protocol
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Various Internet mail protocols facilitate accomplishment of various
functions in mail processing.
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... 1. Provide for submission of short mail messages with the same level
of functionality (or higher) that the existing Internet mail
protocols provide.
2. Provide for delivery ...
... delivery of short mail messages with the same level
of functionality (or higher) that the existing Internet mail
protocols provide.
3. Function as an extension of the existing mainstream Internet
mail ...