opendkim

Mon Apr 4 13:52:56 UTC 2022

Bjørn Mork <bjorn at mork.no> writes:

> Any hints on how to configure sendmail to avoid this are appreciated.

This turned out to be simple.  Should have looked first, as usual.

The sendmail config problem was Debian specific, caused by

dnl # add .' to mustquote chars (and match the binary default)
changequote([, ])dnl
define([confMUST_QUOTE_CHARS], [.'])dnl
changequote(`, ')dnl

in /usr/share/sendmail/cf/ostype/debian.m4

Bjørn