Open Exchange Management Shell\nType in get-receiveconnector\nThis will list all of your receive connectors\nNext type in\nset-receiveconnector -identity ServerNameInternet -ConnectionTimeout 00:30:00\nThis command will change the timeout to 30 minutes.\nUse this command to get all your receive connectors and change them all to 30 minutes\nget-receiveconnector | set-receiveconnector -ConnectionTimeout 00:30:00