Secure Information Technology Center – Austria

DKIM Proxy

DKIM Proxy is a reference implementation of the RFC 4871 (DomainKeys Identified Mail – DKIM) standard. This implementation can be deployed as a proxy in front of a SMTP or POP3/IMAP4 server.

The DKIM standard and the provided implementation facilitate the integration of appropriate means to reliably authenticate sender domains in e-mail transmissions. DKIM Proxy enables an SMTP server to sign sent e-mails according to the DKIM standard, and POP3 or IMAP4 servers to verify DKIM signatures of received e-mails.

Received e-mails are extended with an additional header field to indicate the result of the signature-verification process. This way, local e-mail clients can be configures to automatically classify incoming e-mails and to identify e-mails originating from invalid sender domains.

DKIM-Proxy on Windows Vista

Please note that all components of DKIM Proxy need to be run with administrastor privileges on Microsoft Windows Vista.


Title Version Date

Documentation DKIM Proxy (in German)

1.0 2007-11-27

Project Report (in German)

1.0 2007-11-28 (contains .msi installer, 36,7 MB) 1.0 2007-11-27


Notes Version Date
Notes on Windows Vista 2008-09-12
Project Report 1.0 2007-11-28
Release 1.0 2007-11-27
Release 0.3 2007-10-24
Release 0.2 2007-10-23
Release 0.1 2007-10-15

Posted 28.11.2007, Kategorie: IT-Security.