Kopano does not send attached pictures

Hi when I attach a jpeg/png to an email, kopano delivers it as unreadable file.
It works fine with the same picture pasted in the email or any other attachement.
I do not see any errors in the logs.
Any idea what is going on? this is a new install with data moved from old zarafa server.
Thank you.

Hi @augustynr,

the information in the following link may provide needed insight into your system: https://wiki.z-hub.io/display/K4U/Debugging+Kopano+on+Univention

Where it this message composed? Is the file only unreadable at the recipient? Does it stay readable in the sent items?

How was the data moved?

Crosspost: https://forum.kopano.io/topic/2950/attached-jpeg-png-does-not-work-when-sending-and-receiving

Thank you.
The message was composed in webapp or deskup.
The data was moved by copping attachments and importing the dbdump.
The sent folder has bad attachment too.
FYI, I am trying to install new univention and got the new license file when I saved it and opened it I got following:
Return-Path: bounce+pm_93b51d1a~4000160649642~the_blast-digest-201709a~20180421015602613@mail.classmates.com
Received: from localhost (127.0.0.1)
by server.xxxx.com (Zarafa-spooler) with LMTP
for bounce+pm_93b51d1a~4000160649642~the_blast-digest-201709a~20180421015602613@mail.classmates.com; Sat, 21 Apr 2018 08:41:34 -0400 (EDT)
Received: from localhost (localhost [127.0.0.1])
by mail.linqone.com (Postfix) with ESMTP id 609121022FE08
for <erik@ xxxx.com>; Sat, 21 Apr 2018 08:41:34 -0400 (EDT)
X-Virus-Scanned: amavisd-new at xxxxx.com
X-Spam-Flag: YES
X-Spam-Score: 4.501
X-Spam-Level: ****
X-Spam-Status: Yes, score=4.501 tagged_above=-99 required=3
tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1,
HTML_IMAGE_RATIO_02=0.805, HTML_MESSAGE=0.001, MIME_HTML_ONLY=1.105,
RCVD_IN_DNSWL_MED=-2.3, T_DKIMWL_WL_HIGH=-0.01, URIBL_RHS_DOB=5]

which is referencing old email … so something is wrong with the way jpg attachments are being saved. Though I can open jpg attachments in old emails.
Any idea?

that sounds like you did a mistake when importing the attachments. I’d recommend to get in direct contact with the Kopano support.