syntax error in my ldif file

[Ken Perl <kenperl@gmail.com>]

I got the error like below and can not fix it, could anyone help me?

ldap_add: Invalid syntax (21)
        additional info: ObjectClass: value #0 invalid per syntax

$cat lv1.ldif
dn: mail=lv1@colinux.my, dc=colinux, dc=my
ObjectClass: CourierMailAccount
cn: ldap_vitural1
mail: lv1@colinux.my
mail: lv1
userPassword: {MD5}$1$RnorJ$uVjJOT1I//zCCoFAYvP8t0
homeDirectory: lv1
uidNumber: 1000
gidNumber: 100


-- 
perl -e 'print unpack(u,"62V5N\"FME;G\!E<FQ`9VUA:6PN8V]M\"\@``
")'