Allow *eml extension without checking

[pyraxic]

I'm trying to configure /opt/zimbra/conf/amavisd.conf.in that will allow internal users to send multiple *eml attachments without checking for virus/spam. What's the best way to approach this?
# for $banned_namepath_re, a new-style of banned table, see amavisd.conf-sample

$banned_filename_re = new_RE(
# banned extension - basic
#qr'..()$'i,
);

@decoders = (
['mail', &do_mime_decode],
['asc', &do_ascii],
['uue', &do_ascii],
['hqx', &do_ascii],
['ync', &do_ascii],
['F', &do_uncompress, ['unfreeze','freeze -d','melt','fcat'] ],
['Z', &do_uncompress, ['uncompress','gzip -d','zcat'] ],
['gz', &do_uncompress, 'gzip -d'],
['gz', &do_gunzip],
['bz2', &do_uncompress, 'bzip2 -d'],
['lzo', &do_uncompress, 'lzop -d'],
['rpm', &do_uncompress, ['rpm2cpio.pl','rpm2cpio'] ],
['cpio', &do_pax_cpio, ['pax','gcpio','cpio'] ],
['tar', &do_pax_cpio, ['pax','gcpio','cpio'] ],
['tar', &do_tar],
['deb', &do_ar, 'ar'],
# ['a', &do_ar, 'ar'], # unpacking .a seems an overkill
['zip', &do_unzip],
['7z', &do_7zip, ['7zr','7za','7z'] ],
['rar', &do_unrar, ['rar','unrar'] ],
['arj', &do_unarj, ['arj','unarj'] ],
['arc', &do_arc, ['nomarch','arc'] ],
['zoo', &do_zoo, ['zoo','unzoo'] ],
['lha', &do_lha, 'lha'],
# ['doc', &do_ole, 'ripole'],
['cab', &do_cabextract, 'cabextract'],
['tnef', &do_tnef_ext, 'tnef'],
['tnef', &do_tnef],
['exe', &do_executable, ['rar','unrar'], 'lha', ['arj','unarj'] ],
);