Metasyntactic Variable (computing) - Example

Example

RFC 772 (cited in RFC 3092) contains for instance:

All is well; now the recipients can be specified. S: MRCP TO: R: 200 OK S: MRCP TO: R: 553 No such user here S: MRCP TO: R: 200 OK S: MRCP TO:<@Y,@X,fubar@Z> R: 200 OK Note that the failure of "Raboof" has no effect on the storage of mail for "Foo", "bar" or the mail to be forwarded to "fubar@Z" through host "X".

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