Comment # 21 on bug 1093836 from Manfred Hollstein

I installed
<https://download.opensuse.org/repositories/mozilla:/Factory/openSUSE_Leap_42.3/x86_64/enigmail-2.0.5-53.1.x86_64.rpm>
and tried to look at all my various encrypted e-mails sent to me using
thunderbird+enigmail+gpg-2.0.

Now I get

  Enigmail: Error - message was not integrity protected; click on 'Details'
button for more information

Clicking on the Details button then shows:

  Enigmail Security Info

  Error - message was not integrity protected

  gpg: encrypted with 4096-bit RSA key, ID DEADBEEF, created 2014-09-06
      "<some-email@address>"
  gpg: encrypted with 1024-bit ELG key, ID DEADBEAB, created 2000-03-30
      "Manfred Hollstein (manfred.h@gmx.net) <manfred.h@gmx.net>"
  gpg: Signature made Mon May  7 12:40:26 2018 CEST using RSA key ID DEADBEAF
  gpg: Good signature from "<some-email@address>" [ultimate]
  gpg: WARNING: message was not integrity protected

Hmm, gpg sees this as a WARNING, but enigmail converts it into a Error - why?

BTW, the message has been created in Thunderbird/52.5.0 using
enigmail-1.9.9-9.1 on Leap 42.3 on May 7 2018.

The message itself cannot be decrypted, just a different error message from
enigmail.