Test: MIME-003

Case:
Inbound UUCP job with mail for unknown user, will be imported in
*.MSG style primary netmail area.
Message is a single-part MIME message with a file uu-encoded into
the body, but the entire body is also quoted-printable encoded.
Output is a netmail with the attachment extracted.

Input:
UUCP job for local user with single-part MIME message with file
uu-encoded into the body, with entire body quoted-printable encoded.

Output:
*.MSG netmail
Decoded attached file
