Our Exchange server has limits set for each email message that can be sent or received:

Maximum Message Size – The maximum message size is 20 MB which includes the body of the messages and any attachments. When calculating message size it is important to remember that any binary attachments, such as images or software, increase in size by approximately 30 percent when sent via email.

Maximum Number of Recipients - An email message cannot be sent to more than 500 email addresses via the To, CC, and BCC fields. If you need to send a message to more than 500 recipients, you will need to send it in blocks of 500 recipients.

• Disable integration of Instant Messaging in Outlook. From within Outlook go to Tools > Options > Other. Ensure that "Enable Instant Messaging in Microsoft Outlook" is unchecked.
• Make the following registry change to speed up the startup and operation of Outlook: click here to download the file and execute it. In Internet Explorer, choose "Open" after clicking on the link. Accept the warning prompt about importing data into the registry. NOTE: Make this registry change only if your network is primarily running TCP/IP protocol. Ask your system administrator if you're uncertain about the type of protocol you use.
• Update Outlook and Office with the latest patches. Go to http://office.microsoft.com/officeupdate/default.aspx; click "Check for Updates" and follow the instructions to install the latest patches and updates.
• For Outlook 2002 and 200 customers turn off the preview pane and enable AutoPreview. Select "View" > "Current View" > "Messages with AutoPreview".

There are two options for scheduling shared company resources, such as conference rooms, vehicles or A/V equipment, in Outlook.

Option 1 - Add each resource as a separate hosted Exchange mailbox.

1. Create a profile for each resource.
2. Login to Outlook as a specific resource.
3. Set the Resource Scheduling options in Tools -> Options -> Calendar Options.
4. Click Add; select "All" and click Add; click Ok.
5. Set the Permission level to "Author" on the Calendar folder to the "All" users.

To schedule the resource:

1. Open a meeting request.
2. Click Add Attendees.
3. Select the resource.
4. Click the Resources button.

NOTE: If the resource is added in the Required or Optional field of the meeting request the resource will not be booked.

Option 2 – Schedule the resource directly in the Public Folders.

Users who want to schedule the resource make appointments directly in the Public Folder - not through their calendar.

Set permissions on that folder to give the "Author" role to the "All" distribution list.

If you use this option the folder resource's availability is not shown in the Meeting Planner and you cannot invite the folder resource to a meeting. You must book it directly by making an entry in its folder.

You can use Microsoft's Windows-based PDAs/mobile devices to wirelessly sync and access your Exchange mailbox.

1. On your device select Start > ActiveSync.
2. In the ActiveSync panel select Menu > Add Server Source.
3. Enter name of the ActiveSync server:
   For exchange 2007 users use: exchange.poweritllc.com
   
4. Check "This server requires an encrypted (SSL) connection option."
5. Press Next.
6. In the User Information panel fill the following fields:
   • User name: username
   • Password: The mailbox password
   • Domain: MAIL
   
7. Check "Enable Save password option." Press Next.
8. In the Options panel choose the data you want to synchronize with the server.
9. Press Finish.
10. ActiveSync will perform an initial sync.