Novell Doc: Novell ZENworks 7 Desktop Management Administration Guide

C.2 Non-E-Mail Formatted Names

Non-e-mail formatted names are those that:

Begin or end with a period. Login names in this format are considered to be “fully qualified distinguished names” (FQDN).
Include both a period and an escaped period (that is, “\.”). Login names in this format are considered to be “fully qualified names.”

The following are some examples of non-e-mail formatted names:

tom\.v\.jones.miami.example.acme_inc. (FQDN)
tom\.v\.jones.miami.example (FQDN)
tom.v.jones.miami.example
tom.v.jones
tom@jones

If a name includes a period, the Middle Tier Server attempts to authenticate it first as a FQDN. If that authentication fails, the Middle Tier attempts to authenticate the name with the periods escaped (“\.”) beginning from left to right. If that authentication fails, the Middle Tier attempts an LDAP search from each configured base distinguished name.