my first message was sent without arc seal to the list ipfire.org's listserver added a arc seal which my receiving MTA validated as arc=pass
now, for this message I modified my submission server to also add an arc seal for the message sent to this list.
Hi,
the ARC seal of your message looks fine, but does not seem to be wrapped to 78 characters per line:
ARC-Seal: i=1; a=rsa-sha256; d=mta.somaf.de; s=arcseal202101; t=1621356898; cv=none; b=T8A5bAtaHHEFFACKjbKDGWXujMFGUASy/2fo0A8xt+Eb8TFrdEuxay1dLceyeJDnN18NjLlziiryeCpzytAdJhpicI/qF33TNo5BS/tOSClnWHmLgT9VSV+Rks2LxS8LPnLcdOn3EpSQ5njy08hmVgO1IPG2ls6BihJMixtD0YVJCpcqol6sPp7TCtA9DkWbGNA15HidQ0M/RlG+pO0iXSq0zWW6BYxSBv1sxT4DtGkcXKGC6SucSU6u4yuI5///lxjzE4P1du74PGimRS7OTKoF2iDRkgZDIgoEzphm0K/59gN6u/lj1+49Dng/s10nDtfZc4RlKj7MBy0yWkU0WQ== ARC-Message-Signature: i=1; a=rsa-sha256; d=mta.somaf.de; s=arcseal202101; t=1621356898; c=relaxed/relaxed; bh=9x3e0pbvnFZ44Xlqiy+sUTqdsNeLpA7bN+NVpAL9Y6k=; h=To:DKIM-Signature:From:Subject:Message-ID:Date:MIME-Version: Content-Type:Content-Language:Content-Transfer-Encoding; b=tT1MXPeR3M0r6lOf2Z2/YNl5rytlsmlXNYjMIVxKMdIUP0+wSE6vehpq5fp2BHMzYmvoe7kGRNCCmI417xK4OjbnLlH7t7YV54V2i6p+pJUpCczRhz9D2jh7aa5ZNckndB8gC4dNE1ijbwaXBB8XeXD5TVd+Zi6dmJVD68cXE5X/auDwjpTgREwAWHvWPYMfMyIrQcQhO+c4Re8cQVpLVw9G+s+E2ZumGHkT+kUa9BddGBa3fyq2lm/1GlO5XHvJvHCm+m6Ub82x+7j+V1VaTwFh1lWcYOJ8k2djc018v3Y61HW5TUMxhXOaCObRyL3rvW+gUWGMw/CinguLtZqZsw== ARC-Authentication-Results: i=1; mta.somaf.de
Just a small issue - perhaps some ARC validators might stumble across this...
Thanks, and best regards, Peter Müller