Hi All,
IF you are using Safari 5.x on Mac OS 10.6 then yes, there is a known issue that you cannot Send new mail or Reply to an existing mail, logging out may not work either. Using another browser on your Mac like Firefox is a workaround that we suggest to address this issue while we work on the fix. Microsoft is aware of the issue and investigating it for a possible fix. No ETA is available at this time. I will update the post when I have an update to share. Thanks for your patience.
Best Regards,
Jason Jiang
