PDF Files get corrupt in em Client 8 Beta


If I go to my webinterface for the IMAP account I could download the 100 kb file and open it just fine.

Using the latest Beta

testing@emclient.com wrote me back to reproduce the issue and send log files. I will try to do that


There were instances in the past where the user could open the attachment using another email client, or the web interface, but not eM Client. This is because of a mis-configuration on the server.

OK I understand.

But regardless I will do what I was told by testing@emclient and reproduce the issue and send logs :slight_smile:

Even if it happens only sometimes it is a bug which should be sorted out.

Yes, most likely a bug with the server, though there are also a bunch of issues still to be resolved with the beta. :wink:

Hope to hear soon that you have a solution.

Hi Mike4001,
I have the same issue with digitally signed messages in eM8.
It is so confusing, because sometimes the PDF attachment is corrupted the way it can not be opened. Adobe Reader (Foxit reader) shows “File is corrupted”.
Another time the PDF file is corrupted so curiosly that Adobe reader opens it but some text is corrupted, format is corrupted etc.
There have to be some bug in signed messages processing in eM8…
It is very dangerous because eM’s behavior is not consistent.
I prefer if application fails so thus it fails the same way every time.


I agree.

Please also send this to testing@emclient.com so the devs can hopefully sort this out soon.



On a sidenote => These messages are received correctly in em client 7.

So this is definitely not a serve-side issue as @Gary suggested.

Yes, this is eM8 bug. Not mail server issue.

I had reported more than 10 other bugs in eM8, except attachment corruption in signed messages.

Are there any news regarding this issue?

I would have hoped the developers would respond as it is kind of serious …

Hi, are there any news?

Ver 8.0.2951 still suffer from signed e-mails processing. I received couple of invoices as a attachment of digitaly signed message and all the PDF files are corrupted. I have to open it from webmail interface.

Yes, issue is still not fixed and it is very annying and a critical bug …

Is this bug acknowledged by the devs?

I short response would be appreciated.

Thank you

Hello? Anyone home?

Come on guys … every PDF in a signed E-Mail is corrupt.

Did the response from the devs got deletet ?

I don’t see it anymore.

Hi Michael, what brand is your mail server?


We are using https://all-inkl.com/

It´s supposed to be one of Germanys biggest Webhosters …

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I use Kerio Connect. I thought if it could be related to mail server. It seems improbable.

Hi, are there any news?

Maybe today there are some news.

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