We're currently testing the open source version of ZCS 3.1 and so far we are fairly impressed. The only problem is the blocking of images in HTML emails. While this can protect users from potential security risks, overall it just annoys them, particularly my boss.
There was a thread back in December 2005 that discussed a future solution whereby a user could choose to display images from a certain email address. While this is helpful it's not a full solution, at least in my situation. Is there any way, or is there any plan, to grant further control of this feature to the admin? I'd love to see a global setting, possibly as part of a COS, that would allow us to turn image blocking off by default. If it's not in the works, has anyone else found a way to disable it, possibly by modifying the underlying code?
As the email admin I'd love to use this product, but unless I can disable this feature Zimbra is not longer an option for us.