for Postfix, Zimbra and Sendmail

MSH Traffic Policy for Postfix, Zimbra and Sendmail is sophisticated email management system that allows to set server sided rules for automatic content control and flow administration.

MSH Traffic Policy for Postfix, Zimbra and Sendmail is sophisticated email management system that allows to set server sided rules for automatic content control and flow administration.

Application works as external standalone mail filtering plugin which integrate with MTA through official and standarized Milter API. Integration is done before mail is queued, so it can be used to filter spam and manipulate message before it hits your mail server.

Desktop application is flexible and powerful tool which gives many advantages for administrator comparing to manual scripts editing. It can run on Windows and Linux desktop.


Block, Reject or Silently Accept Message

Blocking messages and many other actions can be executed based on message properties (like subject, sender etc.) and mail server environment values.

List of only few which can be used to filter messages:

  • Message sender, message recipients and message mime headers
  • Message size, keywords in body and subject
  • Attachment name, type, size and count
  • Filter based on time range
  • Based on recipients count
  • Envelope sender and recipients

Attachments Control

Take control over attachments in your organisation. Add, remove, compress, save to disk and strip unwanted attachments. Save them to the disk and add information to message, so the recipients will know how to access them directly from message.

With zip compression application will automatically compress outgoing/incoming email attachments. You can specify to skip certain types of attachments.

Message and Envelope Recipients Manipulation

Add, remove, modify sender and recipients of the message or even move all recipients to BCC field. Envelope and message participants are separated to give more control over message attributes. Remove recipients from TO, CC and BCC fields.

Content Filtering

Scan messages with advanced regular expressions and simple wildcards. Check subject, message body and any MIME header. Block messages marked with other antispam and antivirus milters.

Protect financial and education related information: detecting social security numbers, payment information and more.

Use multiple conditions and check sender, attachments, recipients, message headers. You will monitor and regulate both communiaction of internal and external information well as personal private-related data.

Add Disclaimers

Append html and text disclaimers for choosen users. Application can skip adding another disclaimer if there is one already inserted.

Messages Counting

Count messages based on sender and recipients, this will give limit capabilities for specified users in defined time period.

Protect against the risk of becoming identified as spam domain.


  • Run Scripts and Executable's - provide to them any message value (subject, sender, recipients etc). You can invoke external scripts which will do statistics
  • Send New Messages - send a new message with attachments in HTML and PlainText format
  • Forward Messages - forward original messages to specific mailbox, use conditions and exceptions to filter which messages to forward



For Server Module

Postfix 2.4+
Sendmail 8.12+

For Desktop Module

MS Windows

Runtime Environment

Java 8+


Server Module

MSH Traffic Policy Milter
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don't forget to download desktop module

Desktop Module for administration

MSH Traffic Policy Administrator
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MSH Traffic Policy Administrator
MSH Traffic Policy Setup.exe
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Release History

Demo mode

After installation application will be working in demo mode. Each email message subject will be shuffled. Write to us for trial license key and test fully featured application for 30 days.


MSH Traffic Policy is licensed on a per server basis for Zimbra, Postfix and Sendmail. You need to purchase a license for each server that the product will be installed on.

License Type Qty. Price
Server $695
Prices are listed in American dollars and do not include applicable VAT.
Prices are subject to change.
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A license for this software is a one off license and is valid for the major version you purchase (i.e. 1.x) and all updates. The price of the program includes:

  • free software updates
  • email support

Applying Your License

After purchasing MSH Traffic Policy, you will be sent a license key by email. Instructions on how to apply your license will be attached to that email, but also can be found here.


Go to MSH Traffic Policy documentation.


If you have any questions or you need support do not hesitate and write to