3503 - Queuing message for delivery error (MMSender errors)

This article applies to:

• Trustwave MailMarshal (SEG)

Symptoms:

Event ID: 3503
Type: Error
Source: MMSender
Description: Queuing message for delivery error

Causes:

This error occurs whenever the MMSender is unable to queue a message internally. This will occur when the message has already been moved into the Queues\Sending directory, but the MMSender is unable to read and queue the message appropriately at that point.