What browser do you use?

issue replicated in:
Chrome 52.0.2743.82
Firefox 39
IE11

Please note following:
1)
When image is pasted to the message from internet - it is saved in message source like this:

<img src=3D"http://www.domain.com/image.jpg&quot; />

Such images work correctly when forwarding or replaying to message.

2)
When image is pasted to the message from external application (not the web browser) - it is saved in message source like this:

<img src=3D"cid:4AB2-5873AD00-7-1B282340" type=3D"image/png=" alt=3D""/>

Such images end up with the issue described in this bug report.

"Problem 1" is fixed.

I just noticed your update on this bug.
Thank you for your effort in correcting it.

I just installed latest night build
sogo_3.2.5.20170112-1_amd64.deb
and now inline images are not displayed at all.
Attachment will be added

another update
I just figured out that if I send inline image from SOGo web interface and then open this message in SOGo web interface - image is shown!
If I send inline image from Gmail, Outlook 365 or Roundcube 1.2.3, and then open it in SOGo web interface - image is not shown (as seen on attachment)

Please test the next nightly build.

Hi.
Latest nightly build has been installed 3.2.5.20170114-1
Issue introduced in 3.2.5.20170112-1 is resolved (images in messages created in clients other than SOGo web-client are now displayed).

However issue for which this bug report is opened is not resolved. It is all messed up. Let me give you examples.

1. I create a message with inline image in SOGo web-client. I send it and next I open it also in SOGo web-client. I click forward. Inline image is not shown in message composing window (ckeditor). Nevertheless I send this message and when I open it upon arrival inline image is shown. It is however shown in different way than in first message - in the message body it is shown correctly, but in attachments section I also see a preview of that image (that wasn't a case in first message).

2. Original message with inline image is created in other client than SOGo web-client (today I tested Gmail and Roundcube 1.3-beta). I open it in SOGo web-client and click forward. Image is not shown in message composing window (ckeditor). I send it and then open in SOGo web-client. Image is not shown in message body. It is however attached to the message as ordinary attachment (with preview in attachment area)

One more thought regarding this matter.
Inline images (Content-Disposition: inline) should not be displayed on the attachments list.
Only those, which are explicitly attached to the message as attachments (Content-Disposition: attachment) should be listed there.

+1 for rc-pl's notice about not adding embedded images to the list of attachements at the very bottom of the mail.