Thank you for using ResponseMaster, an application for managing the returned email messages from large email delivery systems. ResponseMaster’s flexibility allows it to be easily integrated into nearly any system.

System Requirements

To install and run ResponseMaster, you should have the following:

  • 2 GHz processor
  • 1 gig of RAM (Minimum requirement, more available memory the faster Response Master will execute)
  • 50 megabytes of free disk space
  • Operating System (64 bit)
    • Windows 10
    • Windows Server 2019
    • Fedora 33
    • Ubuntu 20.04 (LTS)

There are two supported version of Java runtime environment (JVM). Java JVM must be 64 bit. Details about Java versions can be found at XXX

  • AdoptOpenJDK Version 11 (LTS) – Windows Installation instructions XXX
  • Oracle Version

General Mail server support

  • Any IMAP4 compliant mail server (not necessarily on the same machine)
  • Any POP3 compliant mail server (not necessarily on the same machine)
  • Maildir files local to ResponseMaster. This is the most performant configuration

Specific Mail servers (not necessarily on the same machine)

  • Microsoft Exchange Server or Office 365 Exchange
  • Postfix
  • qmail
  • PowerMTA
  • Cyrus
  • Other configurations that are likely to work
  • Maildir files local to ResponseMaster. This is the most performant configuration

Registering ResponseMaster

In order to receive updated categorization rules, software updates, and technical support, you must register your copy of ResponseMaster as soon as possible after installing it. Please send your name, company, and the address of the mailbox(es) you are scanning to

Contacting Extreme Messaging

To contact a Technical Support representative, send email to

To contact a ResponseMaster sales representative, send email to


The ResponseMaster Installation Guide contains instructions for installing ResponseMaster on your system.

The ResponseMaster Configuration Guide describes how to set up ResponseMaster for your environment.

Known Problems and Limitations

  • Some older versions of the 64 bit ResponseMaster installers on Windows defaulted to the 32 bit “Program Files (x86)” directory. If you took that default, you will need to adjust the installation path of the more recent Upgrade installers to install to the same place.
  • A change in Oracle’s JVM version 1.6.0_u28 caused the Microsoft JDBC driver for SQL Server to stop working. It is fixed in the latest version (u31) and also in 1.7. If you can’t upgrade, you can add this Java option to workaround the problem:


Please see Java issue #7105007 for more information.

The categorization rules have varying levels of coverage for different languages. English is strongest, followed by French, German, and Spanish which are also pretty strong. There is also decent coverage for Chinese, Dutch, Finnish, Italian, Norwegian, Swedish, and Portuguese, and some coverage for Danish, Japanese, Korean, and Polish. If you are interested in discussing support of these (or any other) languages, please contact us at