Phone: +43-1-5851414

Product Information
DkimX is an add-on for MS Exchange Server 2013/2016 which supports DKIM-signing of outgoing messages and verification of incoming messages by using the following message authentication mechanisms: SPF, DKIM, DMARC.


  • DKIM Signer:
    • Supports rule-based message processing for outgoing messages in an MS Exchange Server environment.
    • Allows configuring every aspect of the DKIM-specification (RFC 6376, RFC 8301) for signing messages (including 3rd party signatures and multiple signatures).
  • Verifier:
    • SPF (RFC 7208) verification
    • DKIM (RFC 6376, RFC 8301) verification
    • DMARC (RFC 7489) verification
    • DMARC report generator:
      • Full support for DMARC aggregate reports, including support for intraday report generation periods.
      • Full support for DMARC failure reports.
      • Support for hosting environments: distinct settings depending on recipient domains.
    • The verification results are published by adding Authentication-Results header fields (RFC 7601) and optionally custom header fields to evaluated messages.
  • Administration by using the DkimX Management Shell (PowerShell-based command line interface) or DkimX Management Console (GUI implemented as an MMC 3.0 Snap-In).
  • Supports easy backup and restore of configuration data.
  • Monitoring and troubleshooting:
    • Message logs (DKIM signer message log, verifier message log)
    • Application-specific event logs
    • Performance counters
  • Low resource usage, excellent performance and high scalability of the processing engines, whose implementations are based on asynchronous tasks.

Note   DkimX 1.31, an older version for MS Exchange Server 2007/2010, which only supports DKIM-signing, is still available.

Supported OS: Windows Server 2012 (R2)/Windows Server 2016
Supported E-mail Servers: MS Exchange Server 2013 (CU16 or later)/2016 (CU5 or later)
Software Type: Trialware (60 days)

Show the license agreement (EULA)

File Size Content
DKIMX_v3.0.300.MSI 2.69 MB
  • DkimX 3.0 Build 300 -/- Release Date: 2018-06-07
    MSI Installation Package for 64-bit Windows
DKIMX_v3.0.300.CHM 151 KB
  • Documentation (HTML Help) only. This file is included in the product distribution file. You will download this file in case that you want to take a look at the documentation before installing the product.
  • Note: If you download the documentation separately, you must unblock the file after downloading it: Right-click on the downloaded file and select the Properties menu item. Then click on the Unblock button.
Uninstall Instructions

DkimX can be uninstalled by:

  • Open the MS Windows Control Panel
  • Select 'Uninstall a Program'
  • Find DkimX in the list of programs and double click on it
  • Click the 'Uninstall' button in the DkimX Uninstall window