Outgoing SMTP messages remain in the outgoing message queue, and event ID 4000 is logged on the computer that is running Exchange 2003 (899392)

RESOLUTION

1. Right-click My Computer, and then click Properties.
   
   Note In Microsoft Windows Server 2003, click Start, right-click My Computer, and then click Properties.
2. Click the Advanced tab, and then click Environment Variables.
3. In the System variables list, note the values that correspond to the TEMP variable and the TMP variable. For example, note the values from the following table.

   Variable	Value
   TEMP	C:\WINNT\TEMP
   TMP	C:\WINNT\TEMP

4. For the folder that you noted in step 3, verify all the following:
   • Verify that a valid path to the folder exists.
   • Verify that the drive where the folder is located has sufficient hard disk space available.
   • Verify that the SYSTEM account has Full Control permissions assigned for the folder or that the SYSTEM account has at least Read permissions and Write permissions to the folder. To do this, follow these steps:
     1. Start Windows Explorer, locate and then right-click the folder that the TEMP variable or the TMP variable points to, and then click Properties.
     2. In the Temp Properties dialog box, click the Security tab, and then click SYSTEM in the Name list.
     3. Verify that the Full Control check box is selected in the Allow column.
        
        Note If the Full Control check box is not selected in the Allow column, verify that the Read check box in the Allow column is selected and that the Write check box in the Allow column is selected.
   • If you are running a file-level antivirus program, make sure that the antivirus program has not locked the files in the TEMP folder. For more information about how to do this, contact the antivirus program vendor. For information about how to contact computer software vendors, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:

     65416 Hardware and software vendor contact information, A-K
     
     60781 Hardware and software vendor contact information, L-P
     
     60782 Hardware and software vendor contact information, Q-Z

   • If disk quotas are enabled on the volume where the folder is located, verify that the quota has not been reached. To view the quota settings for a particular volume, follow these steps:
     1. Right-click the volume, and then click Properties.
     2. Click the Quota tab.
     For more information about how to manage disk quotas, visit the following Microsoft Web site:

     http://technet2.microsoft.com/windowsserver/en/library/ac77bbbe-72f5-4d4e-b651-33680bdb9f791033.mspx