Re: Looking for implementations of RFC 3848 (ESMTP and LMTP Tra

On Tue, 24 Nov 2009, Alexey Melnikov wrote:
> Please let me know if you know of implementations (MTAs/MDAs) that
> generate such parameters (in particular
> ESMTPA/ESMTPS/ESMTPSA/LMTPA/LMTPS/LMTPSA)
Postfix MTA since 2007-07-20:

20070720
        Support for RFC 4954 (SASL AUTH, updates RFC 2554, refines
        some reply codes and introduces DSN enhanced status codes)
        and RFC 3848 ("Received ...  with ESMTPS?A? ...). Currently,
        support for the latter is always on.  Files: smtpd/smtpd.c,
        smtpd/smtpd_sasl_proto.c, smtpd/smtpd_sasl_glue.c.


> > and clients that parse Received headers and analyze/check the
> > corresponding WITH parameter values.
> SpamAssassin uses them to detect message submission hops.
Indeed, since 3.0.3, some time around April 2005.


  Mark