Hello,

i installed openproject on a Ubuntu Server and configured it. I think everything is working except there are no images in the email notification. 
For example if I have a task with an image in it and update something like the end date and save it. In the Email notification the image from the task is not showing. Only a boarder with a question mark in it.

Second problem is the URL in the notification email footer is not correct, it says: You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: http://hostname/my/account

I figured out that in the mail the URL of the image is not correct. The hostname in the URL is missing: 

<p><img src="/openproject/api/v3/attachments/10/content" alt=""></p>

How to fix it?