Configuring Retry Attempts and Intervals (IIS 6.0)
If a message cannot be delivered on the first attempt, the SMTP service sends it again from the Queue directory after a specified time. You can set the interval between delivery attempts. You can also designate the number of times to attempt to deliver a message. After the limit is reached, the message is returned to the sender with a non-delivery report (NDR) and copies of the message and NDR are sent to the location you designate. The NDR is placed in the Queue directory and goes through the same delivery process as messages. When the NDR reaches the maximum number of retry attempts, the NDR and message are sent to the Badmail directory.
You must be a member of the Administrators group on the local computer to perform the following procedure or procedures. As a security best practice, log on to your computer by using an account that is not in the Administrators group, and then use the runas command to run IIS Manager as an administrator. At a command prompt, type runas /User:Administrative_AccountName "mmc systemroot\system32\inetsrv\iis.msc".
To configure retry attempt and interval settings
To allow for network delays, you can set a delay period to expire before sending the delivery notification. The minimum value is 1 minute, the default is 12 hours, and the maximum value is 9999 days. Use the drop-down menu beside the value field to use minutes, hours, or days.
Type a value for messages that have not been delivered after all retries and delays have expired. The minimum value is 1 minute, the default is 2 days, and the maximum value is 9999 days. Use the drop-down menu beside the value field to use minutes, hours, or days.