Today, Microsoft published Update Rollup 5 for Exchange Server 2010 SP1 to the download center. The Update Rollup includes some fixes amongst which are: PDF attachments sent from a Mac Mail Client are not shown in OWA .zip-file download not always working Unable to delete a folder with a certain character...
SP1 will include fixes and tweaks in areas you've helped us identify, including a roll-up of the roll-ups we've released to date. I also wanted to flag some of the feature enhancements we're excited to bring to you with SP1 including: archiving and discovery enhancements, Outlook Web App...