Email send and receive is fine we just can see Mail Manager to manage emails in the queue. When I click on "Open Mail Manager in New Window" I get an Invalid request message. Looking at logs Up2date reboot the system overnight and it looks like an update has been iinstalled. We have an HA pair - SG430. Firmware is at 9.510-5. Similarly when our HD connect to mail manager directly they seem the same error. As might be expected Slave and Master may have flipped overnight due to the update. Any ideas welcome?
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