Use the WebAdmin Interface to configure the Local Delivery module. Open the Mail pages in the Settings realm, the open the LOCAL pages.
Log; Use the Log setting to specify what kind of information the Local Delivery module should put in the Server Log. Usually you should use the Major (message transfer reports) or Problems (message transfer and non-fatal errors) levels. But when you experience problems with the Local Delivery module, you may want to set the Log Level setting to Low-Level or All Info: in this case protocol-level or link-level details will be recorded in the System Log as well. When the problem is solved, set the Log Level setting to its regular value, otherwise your System Log files will grow in size very quickly. The Local Delivery module records in the System Log are marked with the LOCAL tag.
Processors: When you specify a non-zero value for this setting, the Local Delivery module starts to process queued messages directed to local Accounts. The module can use several simultaneous processors (threads) to deliver messages to several Accounts at the same time. If you have more than 1000 Accounts, or if you have many Accounts with time-consuming automated Rules, you should allow the module to use more than 1 processor for message delivery.
If the Account is full: When you specify a non-zero value for this Retry setting, the Local Delivery module checks the Account mail storage before trying to deliver a message to that Account. If the Account mail storage size is limited, and the specified percent of that limit is already used, or it would be used when the new message is added, the Local Delivery module delays all messages directed to that Account. The module retries to deliver mail to that Account periodically. It resumes message delivery when some messages are deleted from the Account Mailboxes. This parameter specifies how long incoming messages should be kept in the module queue before they are rejected with the account is full error message. If the Retry value is smaller than the Every value, messages are not kept in the Queue when an Account is full: they are rejected immediately.
If the Mail Service is disabled: When you specify a non-zero value for this setting, messages sent to an Account with disabled Mail Service option are not rejected immediately, but they are left in the module queue for the specified period of time. The module tries to deliver the delayed messages periodically. When the administrator re-enables the Account/Domain Mail Service, the queued messages are delivered to the Account.
Suspend: If the incoming message size is larger than the he Account mail storage limit, the message is rejected. If the Account mail storage limit does not allow an incoming message to be stored, but the message size itself does not exceed that limit, the message