Downloading or viewing attachments using the web client is often very slow. For instance, the user may experience a 45 second delay after clicking on the download link of an email for a 15K attachment before the save dialog appears. The actual process of saving the file is relatively fast.
I could not find anything indicating a problem in the log.
I am currently advising users to place the attachment into their Briefcase and then view/download as this is consistently a fast operation.
We are running 5.0.5 on Ubuntu 6.06 LTS. Our server has dual 3.06 GHz XEON processors with 6GB RAM and 438GB disk storage in a RAID 5 array. There are currently 36 mailboxes.
Any insight into addressing this problem is appreciated.