ExchangeMode

N/A

N/A

N/A

InstallationFolder

C:\Program Files\OPSWAT\MetaDefender Email Security\

string

N/A

external_quarantine_block

dword

optional

Enable quarantining the original copy of blocked emails on an other mail server. For details see 4.10. Quarantine configuration.

If the parameter does not exist or if it is 0, then the internal quarantine will be used in case of blocked emails.

external_quarantine_sanitize

dword

optional

Enable quarantining the original copy of sanitized emails on an other mail server. For details see 4.10. Quarantine configuration.

If the parameter does not exist or if it is 0, then the internal quarantine will be used in case of sanitized emails.

sender_helo_domain

string

optional

The fully qualified domain name (FQDN) that Email Gateway Security will send in HELO/EHLO commands to relay SMTP servers. Besides this FQDN the external IP address of Email Security will also be sent. For details see section Opening and closing in RFC 821.

If the parameter does not exist or if it is empty then the computer name of Email Gateway Security is sent in HELO/EHLO.

receiver_helo_domain

string

optional

The fully qualified domain name (FQDN) that Email Gateway Security will send in HELO/EHLO commands to SMTP clients. For details see section Opening and closing in RFC 821.

If the parameter does not exist or if it is empty then the computer name of Email Gateway Security is sent in the response to a HELO/EHLO.

exchange_exclude_probe_emails

dword

optional

Microsoft Exchange Server sends probe email messages to monitor the health status of the email processing components. This probe messages can, however, fill Audit > Email History.

Setting this parameter to 0 will enable listing Exchange probe messages in Audit > Email History.

If the parameter does not exist or if it is 1, then Exchange probe messages are not listed in Audit > Email History.

processing_threshold

75

dword

optional

This parameter limits the number of emails with "Processing" status at the same time. If this parameter is not present then this number is 75 by default. Setting this value lower can reduce the processing load on both Email Gateway Security and Core.

If the parameter is 0 then the throttling is disabled.

concurrency_threshold

N/A

dword

optional

This parameter limits the number of concurrent threads submitting emails to MetaDefender Core for scanning.

If the parameter is 0 then no direct limitation is applied.

scheduled_db_optimization_time

03:00

string

optional

If this parameter is set, then Email Gateway Security performs a database optimization at the time configured.

The value syntax is:

Configured to the following value, Email Gateway Security performs the optimization at 3:00AM each day:

If not set (or can not be interpreted as a time value) then no optimization is performed.

in_folder_timer_interval

1000

dword

optional

Interval –in milliseconds– between polling of new emails.

max_email_insert_count

100

dword

optional

Maximum number of emails to insert into the database in a single batch.

restaddress

*

string

required

One or all of the IP addresses of the computer that runs the product to serve the web user interface (* means all interfaces)

restport

8058

string

required

Designated port number for the web management console (REST) interface

public_rescan_port

N/A

string

optional

Designated port number for the rescan functionality web and REST interface.

For details about rescan see 5.6. Password protected attachments.

smtpaddress

*

string

optional

One or all of the IP addresses of the computer that runs the product to serve the SMTP interface (* means all interfaces)

logfile

string

optional

Location of a log file to write log messages to.

If the parameter does not exist, then no logs are written to any logfile.

loglevel

string

optional

Level of logging. Supported values are: debug, info, warning, error.

wineventlog_level

info

string

optional

Level of logging. Supported values are: debug, info, warning, error.

If the parameter does not exist, then no logs are written to the Windows Logs.

syslog

string

optional

Value can only be in form of udp://<hostname>:<port>.

If the parameter does not exist, then no logs are written to syslog.

(Multiple server can be specified separated with comma)

syslog_level

string

optional

Level of logging. Supported values are: debug, info, warning, error.

override

string

optional

Override specific log ids to display them on another level e.g.: "1723:error,663:info". Note: when displaying these log ids their original level will remain the same.

cef

false

string

optional

If true, the log format is Common Event Format.

local_timezone

false

string

optional

If true, the times sent in syslog messages will be in the server's local timezone. This does not effect entries in the log file/Windows event log.

When syslog is used with cef and local_timezone enabled the timezone name can vary based on the underlying system and it's settings.

nginx_logfile

[installdir]\nginx\nginx.log

string

optional

File name and path to store the Nginx logs. (Rotation of this log has not yet been solved on Windows systems)

log_rotation

false

string

optional

If true, the log file specified by the logfile entry is rotated after 24 hours from creation.

The last 30 log files are stored, the oldest log file will be deleted if number of files reaches the limit.

nginx_log_rotation

false

string

optional

If true, the log file specified by the nginx_logfile entry is rotated after 24 hours from creation.

The last 30 log files are stored, the oldest log file will be deleted if number of files reaches the limit.