Exchange Restart
There are a number of different reasons you might need to restart an Exchange Server it can fall over if resources are limited on your server, something's interrupted one of the services or your mail queue has been overrun and backlogged to name a few. You can find details on Microsoft's Social Technet but the process I've always followed: Check the following 3 Services (a-c) and the dependent services (i-x) are all running fine: Microsoft Exchange Active Directory Topology Service Microsoft Exchange Transport Log Search Microsoft Exchange Transport Microsoft Exchange Service Host Microsoft Exchange Search Indexer Microsoft Exchange Replication Service Microsoft Exchange Mail Submission Microsoft Exchange Mailbox Assistants Microsoft Exchange File Distribution Microsoft Exchange EdgeSync Microsoft Exchange Anti-spam Update Microsoft Exchange Information Store Microsoft Exchange System Attendant If they are all running (not stalled or stopped) and emai...