I'm facing a dilemma and dont know what else I can do. I have a client running SBS 2003 with Exchange SP2 with 4GB RAM installed. The system is been running without ANY problems for the last 4 years.
My problem started ever since I enabled IMAP4 because the client decided to switch to MAC OS X 10.5 and no longer use MS Office but only use the MAC OS built-in apps (Mac Mail, iWorks).
Every time a Mac client connects to the server using IMAP4 the system was going to a TOTAL HALT this problem was fixed by following MS KB 823857, now the system HALT for a few seconds (15-30 sec) at times and either downloading emails takes hours and opening a downloaded email takes for ever.
I installed a process monitor to determine what app\service or process is freezing but as it freezes it will not show where it froze.
I though the problem was with the server and took a Mac to my office where I have a similar setup and it works fine. Please any help or ideas are welcome and GRATLY appreciated