[Enigmail] Obsolete PGP encryption method

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To: [email protected]
From: it_support <[email protected]>
Subject: Obsolete PGP encryption method
Message-ID: <[email protected]>
Date: Mon, 5 Oct 2020 13:35:10 +0300
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
 Thunderbird/78.3.1
MIME-Version: 1.0
Content-Type: multipart/alternative;
 boundary="------------9556532A34696ABFDE4665C7"
Content-Language: it
X-Vs-State: LEGIT
X-Vs-Score: 0
X-Vs-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrgedvgdefvdcutefuodetggdotefrucfrrhhofhhilhgvmecujfhoshhtphhoihhnthdpggftfghnshhusghstghrihgsvgenuceurghilhhouhhtmecufedttdenucenucfjughrpefvhffukffffgggtgesrgdtreertdefleenucfhrhhomhepihhtpghsuhhpphhorhhtuceoihhtpghsuhhpphhorhhtsehsrghvvggshigsohhokhhinhhgrdgtohhmqeenucggtffrrghtthgvrhhnpeeltdehveeugeduffevudetveduhedvleevtdeludfftdegjefgvdeiieelfeehkeenucfkphephedvrdduiedrudejjedrvddvledpkeehrdejhedrudegiedruddtgeenucfrrghrrghmpehinhgvthephedvrdduiedrudejjedrvddvledpmhgrihhlfhhrohhmpehithgpshhuphhpohhrthesshgrvhgvsgihsghoohhkihhnghdrtghomhdprhgtphhtohepvghnihhgmhgrihhlqdhushgvrhhssegvnhhighhmrghilhdrnhgvth

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Hello,

i am encrypting emails via PGP on mail server, and i have not the
possibility to sign them because i can only have the public keys
available on server.

So when i download the emails with Thunderbird , they are PGP encrypted
but not signed.

When i open these emails with Thunderbird, i get an error saying the
message has been encrypted by an obsolete method, and may have been
modified during transmission, so it will not be displayed.

I guess the problem is missing signature? Is there a way to tell
Enigmail to ignore the missing signature and decrypt the message anyway?
Or may the problem be the

application/pgp mime type i am using, which is obsolete? 
I may try with
Content-Type: multipart/encrypted; protocol="application/pgp-encrypted";
but i guess it makes no difference if the problem is in the missing signature

Example email that gives me the error:

....

....

Content-Type: multipart/alternative;
	boundary="_000_VI1P194MB063950F8AFCFEF8AE12E5510A13C0VI1P194MB0639EURP_"
....
....

--_000_VI1P194MB063950F8AFCFEF8AE12E5510A13C0VI1P194MB0639EURP_
Content-Type: application/pgp

-----BEGIN PGP MESSAGE-----
Version: BCPG C# v1.6.1.0
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=d10C
-----END PGP MESSAGE-----

--_000_VI1P194MB063950F8AFCFEF8AE12E5510A13C0VI1P194MB0639EURP_--


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    <meta http-equiv="content-type" content="text/html; charset=ISO-8859-15">
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    <p>Hello,</p>
    <p>i am encrypting emails via PGP on mail server, and i have not the
      possibility to sign them because i can only have the public keys
      available on server.</p>
    <p>So when i download the emails with Thunderbird , they are PGP
      encrypted but not signed.<br>
    </p>
    <p>When i open these emails with Thunderbird, i get an error saying
      the message has been encrypted by an obsolete method, and may have
      been modified during transmission, so it will not be displayed.</p>
    <p>I guess the problem is missing signature? Is there a way to tell
      Enigmail to ignore the missing signature and decrypt the message
      anyway? Or may the problem be the <br>
    </p>
    <pre>application/pgp mime type i am using, which is obsolete? 
I may try with
Content-Type: multipart/encrypted; protocol="application/pgp-encrypted";
but i guess it makes no difference if the problem is in the missing signature
</pre>
    <p>Example email that gives me the error:</p>
    <p>....</p>
    <p>....</p>
    <pre>Content-Type: multipart/alternative;
	boundary="_000_VI1P194MB063950F8AFCFEF8AE12E5510A13C0VI1P194MB0639EURP_"
....
....

--_000_VI1P194MB063950F8AFCFEF8AE12E5510A13C0VI1P194MB0639EURP_
Content-Type: application/pgp

-----BEGIN PGP MESSAGE-----
Version: BCPG C# v1.6.1.0
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=d10C
-----END PGP MESSAGE-----

--_000_VI1P194MB063950F8AFCFEF8AE12E5510A13C0VI1P194MB0639EURP_--</pre>
  </body>
</html>

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