Dear all,
my first post was to optimistic - the user tested some other combinations and when he tries to send a signed HTML mail, the server again refuses to accept it with "Diagnostic-Code: smtp; 501 Message has defects".
The user suggested that the problem is caused by a line containing only "-- " somewhere in the text, but I can not confirm this.
Please find enclosed the refused mail (anonymized).
Regards Rainer
On Mi, 20 Apr 2022 10:51:38 +0200 Rainer Herbst <rainer.herbst@aip.de> wrote:
Dear all,
as the original poster, I have asked the user to send a test mail through our mailman3 system (docker image maxking/mailman-core:0.4.2) and the mail passed.
The user is now on Apple Mail 16, maybe that does the trick. Please find enclosed the anonymizied mail source.
Best regards and thanks for caring even if the problems seems to affect only a small number of users! Rainer
On Fr, 15 Apr 2022 09:03:41 -0700 Mark Sapiro <mark@msapiro.net> wrote:
On 4/14/22 21:33, Stephen J. Turnbull wrote:
Whether we *want* to do that depends on how much trouble that causes for our main constituency (list and site admins), and whether we can provide discoverable documentation of the problem. My take is that this seems to be an extremely rare problem, and at least some MUAs are able to read the message, so we should let it through.
First, we are not silently dropping this message. We are rejecting it at LMTP time so the sender should be notified.
Then the broader question is should we accept all messages with defects, almost all of which are spam, or only certain defects and which ones.
I note that Apple has now released Mail 16 so maybe they've fixed this. My macs are still on Big Sur, so I can't test this.
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan
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Viele Grüße
Rainer Herbst Leiter IT-Service Phone: +49 331 7499-257 e-mail: rainer.herbst@aip.de https://www.aip.de
Leibniz-Institut für Astrophysik Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam
Vorstand: Prof. Dr. Matthias Steinmetz, Wolfram Rosenbach Stiftung bürgerlichen Rechts Stiftungsverzeichnis Brandenburg: 26 742-00/7026
Viele Grüße
Rainer Herbst Leiter IT-Service Phone: +49 331 7499-257 e-mail: rainer.herbst@aip.de https://www.aip.de
Leibniz-Institut für Astrophysik Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam