Running the latest edition of Scalix, I believe its 10.3 on RHES 4. It has been running for 2 months without much trouble.
Last night around 11.45 (I believe) mail stopped flowing, in and out. I rebooted this morning and everything has started up again just fine. Please tell me where I should start looking to find out what happened. The fatal file doesn't contain anything from the last 24 hours.