OK, but the users pc is pretty hefty with 4GB RAM Quad core, the only slight drawback is that it's on Vista rather than XP. ________________________________ From: Michael B. Smith <michael@xxxxxxxxxxxxxxxxxxxxxxxx> To: exchangelist@xxxxxxxxxxxxx Sent: Wednesday, June 3, 2009 2:33:48 PM Subject: [ExchangeList] Re: Mailbox issue - Outlook 2007 It depends on lots of things; but I have quite a number of clients that have mailboxes that large on Exchange 2003 that are getting acceptable performance. From:exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Patrick Sent: Wednesday, June 03, 2009 9:16 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Mailbox issue - Outlook 2007 I am sure we are running sp2, but just wondering if this sort of behaviour is expected, or should this not be the case with Exchange 2003 and Outlook 2007? or am i expecting too much? ________________________________ From:Michael B. Smith <michael@xxxxxxxxxxxxxxxxxxxxxxxx> To: exchangelist@xxxxxxxxxxxxx Sent: Wednesday, June 3, 2009 1:54:15 PM Subject: [ExchangeList] Re: Mailbox issue - Outlook 2007 And make sure you’ve applied SP2 to Outlook 2007. From:exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Exchange Mailing List Sent: Wednesday, June 03, 2009 8:46 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Mailbox issue - Outlook 2007 Well there you go then!! Apply cached mode again. From:exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Patrick Sent: Wednesday, June 03, 2009 9:42 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Mailbox issue - Outlook 2007 It is about 4.5GB and I have taken off cache mode. Thanks Patrick ________________________________ From:sarbjit singh gill <ssgill@xxxxxxxxxxxxxxxxxxxx> To: exchangelist@xxxxxxxxxxxxx; msexchange@xxxxxxxxxxxxx Sent: Wednesday, June 3, 2009 11:46:40 AM Subject: [ExchangeList] Re: Mailbox issue - Outlook 2007 Over 4gb is that 5gb or 6gb or 18gb or 20gb? Is the profile set to cache mode? sarbjit From:exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Patrick Sent: Wednesday, June 03, 2009 5:50 PM To: exchangelist@xxxxxxxxxxxxx; msexchange@xxxxxxxxxxxxx Subject: [ExchangeList] Mailbox issue - Outlook 2007 Hi Guys, just need to get some clarity on this. We have a user whos mailbox if over 4GB, and she keepe getting locks and freezes. We have suggested to her that she archive her stuff, but my question is should this be happening? What is the maximum size a mailbox can be before you start encountering performance issues such as this Exchange 2003 Windows 2003 outlook 2007 thanks patrick