On 2022-10-11 14:05, Benny Pedersen wrote:
hi@zakaria.website skrev den 2022-10-11 13:42:
On 2022-09-13 13:10, Benny Pedersen wrote:
hi@zakaria.website skrev den 2022-09-13 14:03:
from:from:reply-to:date:date:message-id:message-id:to:to:cc:
mime-version:mime-version:content-type:content-type:
in-reply-to:in-reply-to:references:references
Thanks to my friend who didnt need a credit, and helped me out in
reaching this solution.
i have no frinds, but it might be related
https://gitlab.com/fumail/fuglu/-/issues/262
with my conservative list of signed headers it pass
Indeed, it's because you set the following headers in dkim signing
headers:-
from : subject :
date : to : message-id
Although not sure why you've added some space, as per standards I think
only colon separated list its the compliant format like the following:-
from:subject:date:to:message-id
Anyhow this is my final update, the previous headers set which I
included wasnt perfect as cc header was causing a trouble, given it can
fail at some point e.g. when replying more than one time to the same
recipient through a mailing list, and mind me OX and iRedMail, I had to
check your signing headers set, hopefully you are ok for me to present
it here as the optimal one to avoid DKIM failures:-
OX:-
Date:From:To:In-Reply-To:References:Subject:From
IRM:-
x-mailer:message-id:in-reply-to:to:references:date:subject
:mime-version:content-transfer-encoding:content-type:from
iRedMail seems to be the best headers set given it includes X-Mailer
header, which enhances signature validity, when client uses specific
mail client app, although it can be faked yet one must know which client
app the sender would use and if was able to have information to this
length I guess signature validity would be an easy task to break it
further.
Also, I was advised by a friend to duplicate the signing headers in
order to disallow spoofing signature further, while I couldnt see how
nor populate a proof of concept, I removed it but if someone understand
it, I would appreciate their elaboration, surely with thanks :)
Good luck.
Zakaria.
