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<DEFINE_BOOK_NAME>(mgmtguide\Message Exchange Management Guide)
<DEFINE_BOOK_NAME>(instguide\Message Exchange Installation Guide)
<DEFINE_BOOK_NAME>(userguide\Message Exchange User's Guide)
<DEFINE_BOOK_NAME>(progguide\Message Exchange Programmer's Guide)
<DEFINE_BOOK_NAME>(relnotes\Message Exchange Release Notes)
<DEFINE_BOOK_NAME>(mlfguide\Message Exchange Mailing List/File Server Guide)
<DEFINE_BOOK_NAME>(rfc821\RFC 821: Simple Mail Transfer Protocol)
<DEFINE_BOOK_NAME>(rfc822\RFC 822: Standard for the Format of ARPA
Internet Text Messages)
<DEFINE_BOOK_NAME>(rfc1123\RFC 1123: Requirements for Internet Hosts --
Application and Support)
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<ENDCHECK_FOR_INCLUSION>