Messaging Server 5.0
integer, single-valued
Disk quota, in bytes, for all users in the domain. If domain quota enforcement is activated, then domains exceeding this quota stop receiving more messages until the domain messages no longer exceed the quota. Domain quota enforcement is activated using the command imquotacheck -f -d <domain\>.
A value of -1 specifies no limit. This is the default.
mailDomainDiskQuota: 50000000000
2.16.840.1.113730.3.1.766