Event ID - 3018

Event Id3018
SourceMSExchangeIMC
DescriptionThe available disk space on the spool drive has dropped below (%1)K. The Internet Mail Connector will not accept messages for inbound and outbound conversion until the available disk space has increased above (%1)K.
Event InformationWhen you attempt to start the Internet Mail Service after it has failed, the service does not start and this event is reported in the application event log of Microsoft Event Viewer: 
CAUSE :
This issue can occur if there is a 16-GB file in the Exchsrvr\Imcdata\Out folder. 
RESOLUTION :
To resolve this issue, delete the 16-GB file, delete the Queue.dat file from the Exchsrvr\Imcdata folder, and then restart the Internet Mail Service.
Reference Links Event 3018 Occurs When Restarting the Internet Mail Service

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