Installation manual

14
2.6 License
A very important step is to enter the license file for ESET Mail Security for Microsoft Exchange Server. Without it,
email protection on the Microsoft Exchange Server will not work properly. If you do not add the license file during
installation, you can do so later in the advanced settings, under Miscellaneous > Licenses.
ESET Mail Security allows you to use several licenses simultaneously by merging them, as is described in the
following:
1) Two or more licenses of one customer (i.e. licenses assigned to the same customer name) are merged and the
number of scanned mailboxes increases accordingly. The license manager will continue to display both licenses.
2) Two or more licenses of different customers are merged. This occurs exactly the same way as in the first scenario
(point 1 above), with the only difference, that at least one of the licenses in question must have a special
attribute. That attribute is required to merge licenses of different customers. If you are interested in using such a
license, ask your local distributor to generate it for you.
NOTE: Validity period of the newly created license is determined by the earliest expiration date from among its
constituents.
ESET Mail Security for Microsoft Exchange Server (EMSX) compares the number of mailboxes for the active directory
to your license count. Each Exchange server's active directory is checked to determine the total mailbox count.
System mailboxes, deactivated mailboxes and email aliases are not tallied in the mailbox count. In a clustered
environment, nodes with clustered mailbox role are not tallied in the mailbox count.
To determine how many Exchange enabled mailboxes you have, open Active Directory users and computers on
the server. Right-click on the domain and click Find.... Then from the Find drop-down menu select Custom search
and click the Advanced tab. Paste in the following Lightweight Directory Access Protocol (LDAP) query and click
Find Now:
(&(objectClass=user)(objectCategory=person)(mailNickname=*)(|(homeMDB=*)(msExchHomeServerName=*))(!
(name=SystemMailbox{*))(!(name=CAS_{*))(msExchUserAccountControl=0)(!
userAccountControl:1.2.840.113556.1.4.803:=2))