Documentation | Support

Go to the table of contents Go to the previous page Go to the next page View or print as PDF
Managing Messages > Configuring message properties
Configuring message properties
Administrator Help | Forcepoint Email Security | Version 8.5.x
Email message control properties allow you to set message size and volume limits, and to determine how invalid recipients are handled. The following settings are configured on the page Settings > Inbound/Outbound > Message Control:
*
Setting size properties
*
Setting volume properties
*
Configuring invalid recipient settings
*
Enabling archive message options
*
Enabling message sender verification
*
Enabling bounce address tag validation (BATV)
Setting size properties
Use the Message Size Options to configure message size properties, such as setting a maximum message size or data size per connection.
Configure message size options
1.
Navigate to the page Settings > Inbound/Outbound > Message Control.
2.
From the section Message Size Options, mark the check box Limit message size.
This is the default setting. Selection enables the corresponding text field Maximum message size.
3.
In the text field Maximum message size, enter a maximum message size in KB, from 1–102400 KB.
The default is 10,240. This setting can prevent very large messages from using valuable bandwidth.
4.
Set a maximum message size per connection; mark the check box Limit data size per connection.
Selection enables the corresponding text field Maximum data size.
5.
In the text field Maximum data size, enter a maximum data size in KB, from 1–204800.
The default is 20,480 KB. This setting can help limit the receipt of messages with very large attachments, which can take up valuable bandwidth.
6.
Click OK.
The settings are saved.
Setting volume properties
Use the Message Volume Options to configure message volume properties, such as limiting the number of messages per connection or recipients per message.
Configure message volume properties
1.
Navigate to the page Settings > Inbound/Outbound > Message Control.
2.
From the section Message Volume Options, mark the check box Limit number of messages per connection.
Selection enables the corresponding text field Maximum number of messages.
3.
In the text field Maximum number of messages, enter a maximum number of messages per connection, from 1–65535.
The default is 30.
4.
Mark the check box Limit number of recipients per message.
Selection enables the corresponding text field Maximum number of recipients.
5.
In the text field Maximum number of recipients, enter a maximum number of recipients, from 1–4096.
The default is 20. This can save bandwidth by preventing one message from being sent to hundreds of users.
6.
Click OK.
The settings are saved.
Configuring invalid recipient settings
Use the Invalid Recipient Options to configure invalid recipient settings, such as allowing invalid recipients.
Configure invalid recipient settings
1.
Navigate to the page Settings > Inbound/Outbound > Message Control.
2.
From the section Invalid Recipient Options, permit mail containing invalid recipients into your system; mark the check box Allow invalid recipients.
This option is available only when the recipient validation is configured on the page Settings > Users > User Authentication. See Managing user validation/authentication options. Selection enables the corresponding text field and check box.
3.
In the text field Block message if the percentage of invalid recipients is at least, enter a value for the percentage of invalid recipients that determines if a message is blocked.
The default is 100%.
4.
Enable the system to send a non-delivery report notification; mark the check box Send non-delivery report (NDR) only if a message is not blocked.
5.
Click OK.
The settings are saved.
Enabling archive message options
Use the Message Archive Queue settings to save all incoming messages to an archive message queue before they are scanned. Enabling this feature can impact storage capacity and system performance.
Enable message archive queue
1.
Navigate to the page Settings > Inbound/Outbound > Message Control.
2.
From the section Message Archive Queue, save incoming messages to an archive message queue; mark the check box Enable archive queue storage.
This option is disabled by default.
3.
Click OK.
The settings are saved. View the archive queue by clicking archive in the queue list on the page Main > Message Management > Message Queues. See Managing message queues.
Enabling message sender verification
Use the Internal Sender Verification settings to ensure that an internal email sender is an authenticated user. This operation performs a check to confirm that an email sender from an internal domain is also an authenticated user. For email to pass this check function, a mail sender's address must match the sender's login authentication entry.
Enable internal sender verification
1.
Navigate to the page Settings > Inbound/Outbound > Message Control.
2.
From the section Internal Sender Verification, mark the check box Enable internal sender verification.
This option is disabled by default.
3.
Click OK.
The settings are saved.
Enabling bounce address tag validation (BATV)
Bounce address tag validation (BATV) is a method for determining whether a bounce message to an address in your protected domain is valid. This method helps to prevent backscatter spam, in which a bounce message to your organization contains a forged recipient address.
With BATV enabled, the sender address of outbound email is marked with a unique tag. A bounce message addressed to that sender is examined for the presence of that unique tag. If the tag is detected, the bounce message is cleared for delivery. A bounce message without the tag is blocked.
Enable BATV
1.
Navigate to the page Settings > Inbound/Outbound > Message Control.
2.
From the section Bounce Address Tag Validation, mark the check box Enable Bounce Address Tag Validation.
Selection enables the corresponding pull-down menus.
3.
Define user and IP address groups to bypass the BATV function; select the groups from among the following pull-down menus:
*
Inbound IP address group
*
Inbound domain group
*
Outbound domain group
A domain group selected for outbound bypass must also be selected for inbound bypass. The default setting for each group is None.
Only user-defined domain and IP address groups are available in the pull-down menus. See Managing domain and IP address groups for information about creating domain and IP address groups.
4.
Click OK.
The settings are saved.

Go to the table of contents Go to the previous page Go to the next page View or print as PDF
Managing Messages > Configuring message properties
Copyright 2022 Forcepoint. All rights reserved.