Exchange Server Mailbox manual cleanup investigation ? Share on Facebook Post on reddit Tweet on Twitter Share on LinkedIn Home › Forums › Messaging Software › Exchange 2007 / 2010 / 2013 › Exchange Server Mailbox manual cleanup investigation ? This topic has 8 replies, 3 voices, and was last updated 9 years, 7 months ago by tehcamel. Viewing 1 post (of 1 total) Author Posts albertwtMember Jun 20, 2011 at 7:14 pm #155149 Hi Everyone, During my half yearly Exchange mailbox investigation, I found out that there are some items that cannot be deleted manually: 1. System Mailbox (they exist in every mailbox database with 0 bytes but contains several hundreds items each) 2. Deleted User Mailboxes still exist in the mailbox database eventhough I already select “Remove” from the EMC not “Disconnect” to delete the leaving user. is there anything that I should do to completely delete those mailboxes ? As for reclaiming disk space I have set the full backup everyday. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.