#new attribute
attributetype ( 1.3.6.1.4.1.4203.666.1.10
        NAME 'DlMemberMail'
        EQUALITY caseIgnoreIA5Match
        SUBSTR caseIgnoreIA5SubstringsMatch
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{256}
)

objectClass     ( 1.3.6.1.4.1.4203.666.1.100
        NAME 'DistributionList'
        DESC 'Distribution List'
        SUP top STRUCTURAL
        MUST ( cn $ DlMemberMail )
        MAY ( owner $ description )
)