PROBLEM:        (UVO105070, QAR 50239)  (Patch ID: OSF375-350362)
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An error occurs when replying to a message in which the "CC:" field contains
blank-separated names not enclosed in angle brackets ("<...>").

When replying to mail using lowercase "r", the "CC:" field on the reply
lists all blank-separated names after all enclosed angle bracket addresses.

The following error message is displayed:

... User unknown