Common Local-part Semantics
According to RFC 5321 2.3.11 Mailbox and Address, "...the local-part MUST be interpreted and assigned semantics only by the host specified in the domain part of the address.". This means that no assumptions can be made about the meaning of the local-part of another mail server. It is entirely up to the configuration of the mail server.
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Famous quotes containing the word common:
“The common consolation which some good christian or other, is hourly administering to himself,—that he thanks God his mind does not misgive him; and that, consequently, he has a good conscience, because he has a quiet one,—is fallacious.”
—Laurence Sterne (1713–1768)