GPGMail: signed mail with big attachment shows gibberish on the screen when displayed from Sent folder

Luc's Avatar


28 Feb, 2015 12:57 PM

After sending a mail with a pdf, only signed, to one of my mailadresses, I get the following output in the sent-folder of mail (It is only part of the gibberish). The incoming mail is normal. I have an imac of 2007 with Yosemite, latest bèta of 10 minutes ago:

--Apple-Mail=_6FE27C4A-8530-4F87-9798-9C10D1DFD610 Content-Type: multipart/mixed;

--Apple-Mail=_3EA806C8-1F0F-4247-95A8-5D9E83C5988C Content-Transfer-Encoding: 7bit
Content-Type: text/html;


--Apple-Mail=_3EA806C8-1F0F-4247-95A8-5D9E83C5988C Content-Disposition: inline;
filename="Porque te vas.pdf" Content-Type: application/pdf;
x-unix-mode=0644; name="Porque te vas.pdf" Content-Transfer-Encoding: base64


  1. Support Staff 1 Posted by Steve on 01 Mar, 2015 04:27 PM

    Steve's Avatar

    HI Luc,

    we've seen this before.

    Could you please do the following:

    • open a new finder window
    • drag the mail in question to the finder
    • attach the resulting .eml file to this discussion

    Ideally attach both the sent mail and if you can manage to, the received email as eml file.

    The mail is probably sent correctly and the mail with attachment correctly received. But somehow in rare occasions, seems to not fully load the sent mail and then display the mail in that damaged style.

    Do you see this often or only a single time? Do you have a reproducible pattern? If you resend the same attachment, does that then work and show correctly in the sent folder?

    If you visit your webmailer and look at the mail in question, is it displayed correctly?

    We have a ticket for this problem. I connected this discussion with the existing ticket. That means, should this discussion get closed, it will be re-opened as soon as the ticket is closed. That way you'll receive a notification. Feel free to open a new discussions should you run into further problems or need assistance.

    All the best,

  2. 2 Posted by Luc on 02 Mar, 2015 08:46 AM

    Luc's Avatar

    Hi Steve,

    I have run some tests, all on an iMac of 2007, with Yosemite. On a Macbook Pro from 2012, everything is normal, no gibberish in the send mails. I have the same mails on both computers, they are synchronized.

    The incoming mails are always displayed normally.

    Only on iMac.
    When I open mail and sent a mail with attachment, the first mail is send and displayed normally. The second time the send mail is displayed in gibberish, the third time also.

    I restart mail and do the same test: the first send mail is displayed normally, the following mails not.

    On a Macbook
    I do the same tests, the mails display always well on the Macbook and on the iMac!

    Something happens after sending the first mail, but only on the iMac.


  3. 3 Posted by Luc on 02 Mar, 2015 08:53 AM

    Luc's Avatar

    Hi Steve,

    I forgot to mention that in my webmailer the mail displays correctly.


  4. Support Staff 4 Posted by Steve on 11 Mar, 2015 05:48 PM

    Steve's Avatar

    Hi Luc,

    thanks for the test cases. That is the identical symptoms we saw with another user reporting this problem:

    • received mail: ok
    • webmail: ok
    • sent folder: scrambled

    We'll update this discussion as soon as we have news.

    All the best,

  5. 5 Posted by Maximilian Bloc... on 11 Mar, 2015 06:41 PM

    Maximilian Blochberger's Avatar

    I see the problem, too. Usually when I forward a mail from my inbox. The forwarded mail shows up above the mail I still have selected and it's loading a while and then it's only showing base64-gibberish and the multipart boundaries like Luc already showed.

    The base64 is probably from the PDF file itself, not the encrypted message, since I can see plain HTML content at the beginning (first part of the multipart mail).

    The incoming mail was neither encrypted nor signed.
    The outgoing (forwarding) mail was not encrypted, but signed by me (using GPG Tools v2.5b5).
    The mails where this problem occurred had PDF files attached. I have realised it as Luc has mentioned it.
    The recipient of the forwarded mails says that everything is fine on his end, so he received the mail just fine.

  6. 6 Posted by Maximilian Bloc... on 11 Mar, 2015 06:44 PM

    Maximilian Blochberger's Avatar

    I failed to mention that if I send signed mails with PDF attachments, there is no problem.
    I'm sending them as plain text messages. The forwarded mails were all HTML messages. I don't recall if they also had a plaintext part, since I already removed them.

  7. 7 Posted by Luc on 23 Mar, 2015 04:20 PM

    Luc's Avatar

    Sending a mail with a PDF attachment works, that problems seems to be solved.


  8. 8 Posted by Maximilian Bloc... on 23 Mar, 2015 05:26 PM

    Maximilian Blochberger's Avatar

    This comment was split into a new discussion: GPGMail: signed mail with big attachment shows gibberish on the screen when displayed from Sent folder

    Still happens with v2.5b6. Same use case as I previously described.

  9. 9 Posted by Luc on 25 Mar, 2015 10:49 AM

    Luc's Avatar

    No problem, version 2.5b6 works fine for me on my iMac from 2007.

  10. Support Staff 10 Posted by Steve on 25 Mar, 2015 03:16 PM

    Steve's Avatar

    Luc: thanks for the update. The ticket is still open. I don't think this is solved, yet. I'm closing this discussion for now. If you re-encounter this issue, you can always re-open and add more info.

    Max: I've split your comments into a separate discussion and will reply there.

  11. Steve closed this discussion on 25 Mar, 2015 03:16 PM.

  12. Steve re-opened this discussion on 14 Apr, 2016 06:12 PM

  13. Support Staff 11 Posted by Steve on 14 Apr, 2016 06:12 PM

    Steve's Avatar

    Hi Luc,

    could you please download and install our latest GPG Suite nightly build (please install the Suite not just a single component) and see if the problem persists. That page also has sig and SHA1 to verify the download.

    All the best, steve

    Disclaimer: This is a development version which has not been thoroughly tested yet - bugs or crashes are to be expected. Thanks for helping us test.

  14. Support Staff 12 Posted by Steve on 08 Jun, 2016 07:36 PM

    Steve's Avatar

    Closing, since no further user feedback was received. Should your problem persist, feel free to re-open this discussion any time.

    All the best, steve

  15. Steve closed this discussion on 08 Jun, 2016 07:36 PM.

  16. Steve closed this discussion on 03 Jun, 2019 02:48 PM.

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