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2.3 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 4 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. There is no way to determine which mailboxes are
protected and which ones are excluded from protection.
Resource mailboxes (i.e. a conference room mailbox) will
be tallied in the mailbox count. Email aliases 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))
If the number of mailboxes in your active directory
exceeds your license count a message will be entered into
your Microsoft Exchange Server log reading, "Protection
status changed due to exceeded number of mailboxes
(count) covered by your license (count)." Your ESET Mail
Security will also notify you by changing its Protection
status to
ORANGE
and displaying a message informing
you that you have 42 days left before your protection will
be disabled. If you receive this notification, please contact
your sales representative to purchase additional licenses.
If the 42 days period has passed and you did not add the
required licenses to cover the exceeding mailboxes, your
Protection status will change to RED. The message will
inform you that your protection has been disabled. If you
receive this notification, immediately contact your sales
representative to purchase additional licenses.
2.4 Post-Installation Configuration
There are several options that have to be configured after
the product installation.
Antispam protection setup
This section describes the settings, methods and
techniques you can use to protect your network from
spam. We recommend reading the following instructions
carefully before choosing the most suitable combination
of settings for your network.
Spam management
To ensure a high level of Antispam protection you must
set actions to be performed on messages already marked
as SPAM.
There are three options available:
1. Deleting spam
The criteria for a message to be marked as SPAM by
ESET Mail Security are set reasonably high, decreasing
the chances of deleting legitimate email. The more
specific the Antispam settings, the less likely it is to
delete legitimate email. Advantages of this method
include very low consumption of system resources and
less administration. The drawback to this method is
that if a legitimate email is deleted it cannot be
restored locally.
2. Quarantine
This option excludes the risk of deleting legitimate
email. Messages can be restored and resent to the
original recipients immediately. The drawbacks of this
method are higher consumption of system resources
and additional time required for email quarantine
maintenance. You can use two methods to quarantine
email:
A. Internal Exchange Server quarantine:
- If you want to use the internal server quarantine
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