McAfee Security for Microsoft Exchange 8.6.0

Important registry keys

Create these registry keys when the significance matches with your requirements.

MSME — Important registry keys
Registry Key Path Significance
Name: DigestMail

Type: DWORD

Value: 1

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\McAfee\MSME\ADUserCache Maintains a cache of User Alias Vs SMTP address, which is used when MSMEis integrated with MQM and the same address is used for Digest mail feature.
Name: ODUserID

Type: REG_SZ

Value: [Example: <admin@domain.com>]

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\McAfee\MSME\E2007 Valid only for all Exchange Mailbox servers. Should be the email address of the On-demand user created by the product, used for interacting with Exchange web services for getting mail data from exchange database.
Name: EWSUrl

Type: REG_SZ

Value: https://<IP address>/EWS/Exchange.asmx

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\McAfee\MSME\OnDemand Valid only for Exchange 2010 Mailbox servers. This is the URL used to connect to Exchange web services hosted by CAS server. This value is populated by powershell script GetHubTxDetails.ps1 during installation and also whenever MSME service is restarted.
Name: SCLJunkThreshold

Type: DWORD

Default value: 4

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\McAfee\MSME\AntiSpam Valid only for Exchange 2010 Mailbox servers. This is the SCL junk threshold, which is retrieved from AD and is at organization level. Any score above this value will be treated as Junk mail, which helps in Junk email routing on Exchange 2007/2010 Hub servers. This value is populated by powershell script GetSCLJunkThreshold.ps1 during installation, and also after some frequency.
Name: IPBlackList

Type: REG_SZ

Value: [Example: 10.0.0.1]

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\McAfee\MSME\SystemState Manually block a specific IP address or a range of IP addresses from sending emails to your organization in spite of its IP reputation.
Name: SPFMaxTimeSec

Type: DWORD

Default value: 5

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\McAfee\MSME\AntiSpam Maximum time SPF is allowed to run. If the time exceeds the defined time, the result is temperror and the mail is delivered.
Name: SPFCacheTimeoutSec

Type: DWORD

Default value: 43200

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\McAfee\MSME\AntiSpam Time duration for the cache entry to become stale. The default duration is 12 hours.
Name: SPFCacheMaxEntries

Type: DWORD

Default Value: 5000

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\McAfee\MSME\AntiSpam Maximum number of entries in cache.
Name: SPFDNSTimeoutMS

Type: DWORD

Default Value: 1000

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\McAfee\MSME\AntiSpam Timeout for each DNS request in milliseconds.
Name: CacheTimeOutForNullRecords

Type: DWORD

Default value: 60

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\McAfee\MSME\AntiSpam Timeout for null records (temperror case) in seconds.
The registry keys SPFMaxTimeSec, SPFCacheTimeoutSec, SPFCacheMaxEntries, SPFDNSTimeoutMS, and CacheTimeOutForNullRecords are created only if you installed the McAfee Anti-Spam component or installed the software using the Complete Installation option.