Groups | Search | Server Info | Login | Register


Groups > comp.mail.sendmail > #8204

Re: autoconvert messes up DKIM signature

From Claus Aßmann <INVALID_NO_CC_REMOVE_IF_YOU_DO_NOT_POST_ml+sendmail(-no-copies-please)@esmtp.org>
Newsgroups comp.mail.sendmail
Subject Re: autoconvert messes up DKIM signature
Date 2025-11-02 01:38 -0400
Organization MGT Consulting
Message-ID <10e6qoh$33j$1@news.misty.com> (permalink)
References <10e398f$qf2r$1@dont-email.me> <10e3hdp$ss0l$1@dont-email.me> <20251101103637.0ffcb76f@ryz.dorfdsl.de> <10e6e64$1obs3$1@dont-email.me>

Show all headers | View raw


Helmut K. C. Tessarek wrote:

> But this whole thing revealed that DKIM and the 9 flag in the local mailer are 
> incompatible.
> Not only for me signing emails, but for anyone. If your mail server signs an 
> email, but my local mailer changes it, then this will screw up your DKIM
> signature.

Most setups check the DKIM signature when mail is received, i.e.,
before local delivery, and add a header with the result.

If you check the signature after local mail delivery, then make sure
there are no modifications that affect DKIM.

-- 
Note: please read the netiquette before posting. I will almost never
reply to top-postings which include a full copy of the previous
article(s) at the end because it's annoying, shows that the poster
is too lazy to trim his article, and it's wasting the time of all readers.

Back to comp.mail.sendmail | Previous | NextPrevious in thread | Find similar


Thread

autoconvert messes up DKIM signature "Helmut K. C. Tessarek" <kct@evermeet.cx> - 2025-10-31 17:21 -0400
  Re: autoconvert messes up DKIM signature "Helmut K. C. Tessarek" <kct@evermeet.cx> - 2025-10-31 19:40 -0400
    Re: autoconvert messes up DKIM signature Marco Moock <mm+solani@dorfdsl.de> - 2025-11-01 10:39 +0100
      Re: autoconvert messes up DKIM signature "Helmut K. C. Tessarek" <kct@evermeet.cx> - 2025-11-01 22:03 -0400
        Re: autoconvert messes up DKIM signature Claus Aßmann <INVALID_NO_CC_REMOVE_IF_YOU_DO_NOT_POST_ml+sendmail(-no-copies-please)@esmtp.org> - 2025-11-02 01:38 -0400

csiph-web