we have a problem with our Zimbra 8.8.15 installed on Centos 6.
The problem started with 8.7.11 and is still there after the update to 8.8.15.
It looks like some mails are not shown correctly in Zimbra webmail, while in Gmail or other clients the same message is shown correctly.
Case 1, received email:
Case 2, sent email:
The question is: what the hell is going on and how to avoid this?
