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Organization Configuration > Hub Transport > Global Settings > Transport Settings > General Tab

 

Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1

Topic Last Modified: 2007-08-16

Use the General tab to configure the transport limits and transport dumpster settings for all Hub Transport servers in the Exchange organization.

Transport Limits
  • Maximum receive size (KB)   This field specifies the maximum message size that can be received by recipients in the organization. The default value is 10240 KB. The valid input range is 0 to 2097151 KB. If you clear the check box next to Maximum receive size (KB), no limit is imposed on the message size that can be received by recipients in the organization.
  • Maximum send size (KB)   This field specifies the maximum message size that can be sent by senders in the organization. The default value is 10240 KB. The valid input range is 0 to 2097151 KB. If you clear the check box next to Maximum send size (KB), no limit is imposed on the message size that can be sent by senders in the organization.
  • Maximum number of recipients   This field specifies the maximum number of recipients in a message. The default is 5000. The valid input range is 0 to 2147483647. If you clear the check box next to Maximum number of recipients, no limit is imposed on the number of recipients in a message. Microsoft Exchange Server 2007 treats an unexpanded distribution group as one recipient.
Transport Dumpster

The transport dumpster is a feature of the Hub Transport server role that should be enabled when using cluster continuous replication (CCR) or local continuous replication (LCR). The transport dumpster submits recently delivered mail after an unscheduled outage in a CCR environment, and as part of the activation process in an LCR environment. The transport dumpster is used only in LCR and CCR environments. The transport dumpster settings are described in the following list:

  • Maximum size per storage group (MB)   This field specifies the maximum size of the transport dumpster for each storage group. The default value is 18 MB. The valid input range for this parameter is 0 to 2097151 MB.
    To enable the transport dumpster, the value of Maximum size per storage group (MB) must be greater than 0, and the value of Maximum retention time (days) must be greater than 0.
    We recommend that you configure this value, which specifies the maximum size of the transport dumpster queue for each storage group, to a size that is 1.5 times the size of the maximum message that can be sent in the organization. If the organization has no size limits, we recommend that you configure this value to a size that is 1.5 times the size of the average message size sent in the organization. For example, if the maximum size for messages is 10 megabytes (MB), you should set the maximum size per storage group to 15 MB.
  • Maximum retention time (days)   This field specifies how long an e-mail message should remain in the transport dumpster. The default value is seven days. The valid input range is 0 to 24855 days.
    To enable the transport dumpster, the value of Maximum size per storage group (MB) must be greater than 0, and the value of Maximum retention time (days) must be greater than 0.
    We recommend that you configure this value, which specifies how long an e-mail message should remain in the transport dumpster queue, to a value of 07.00:00:00, which is 7 days. This amount of time is sufficient to allow for an extended outage to occur without loss of e-mail. When you use the transport dumpster feature, you need additional disk space on the Hub Transport server to host the transport dumpster queues.
To ensure that you are reading the most up-to-date information and to find additional Exchange Server 2007 documentation, visit the Exchange Server TechCenter.
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