[Enigmail] forwarding S/MIME encrypted email failed

Patrick Brunschwig patrick at mozilla-enigmail.org
Wed Jun 18 09:12:38 PDT 2008


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Stefan X wrote:
> Patrick Brunschwig schrieb:
>> Stefan X wrote:
>>> I received a S/MIME encrypted email (which I could not decrypt because I 
>>> did not have the required certificate and did not used S/MIME at all). 
>>> Thunderbird failed to simply forward this email to another recipient 
>>> with the error message "pgpMime.sMime.incompatible". For the receiver 
>>> rules are in Enigmail defined to send all emails encrypted. I also tried 
>>> to send the forwarded email unencrypted but failed with an error message 
>>> explaining me that Thunderbird can not find the defined encryption 
>>> certificate or the certificate is expired. What to do?
>> Forward the email as attachment and activate the option OpenPGP > Ignore
>> per-recipient rules.
>>
>> -Patrick
>
> Hi Patrick!
> So, is it a bug? Should I document it in bugtrack?
>

No, I don't think so. I just tried it myself, and I noticed that
Thunderbird automatically enables S/MIME encryption in such a situation
- -- and this clashes with PGP/MIME. You should forward the message as
attachment and before sending choose from the menu Options > Security
the option "Do not encrypt message" (that is disable S/MIME security).

- -Patrick
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