DKIM signature issue

#1

Hello.

It seems that the DKIM signature is no longer applied to the mail encoded with “iso-2022-jp”.
The mail received around “2020/07/09 11:00:00 +000” was properly signed, but the mail received after that was not signed.
I’ve confirmed that if I change the encoding to UTF-8, it will be signed correctly, but I don’t want to change the encoding if possible.
If so, can you fix it?
The server is “arrow.mxrouting.net”.

Best regards.

#2

As far as I know no such limitation exists in exim, I’d be happy to check the logs for any particular email to see if anything odd stands out. Feel free to message me the sender, recipient, and if possible the subject (to help narrow it further) at chat.mxroute.com.

If such a limitation does exist in exim, it’s probably not something we’ll be able to fix ourselves.

#3

Hello.

OK, I sent you a PM on chat.mxroute.com.
I hope you can confirm.

Best regards.