I use JAMES 3 b5 with a relatively large mail IMAP database (>500K mail items) across several accounts. Most of my clients are using Thunderbird. The problem I'm seeing may very likely be a Thunderbird problem. But I'm just curious what might be going on. Once every few days, I'll go to one of the folders in Thunderbird that I have been accessing regularly and try to open a mail item. I get a msg from Thunderbird that says something like "Mail Server responded that UID is invalid". From this point on, all mail in that folder is inaccessible. I found that the way to fix it is to go the folder properties in Thunderbird and click "Repair Folder". This basically wipes the folder contents and re-downloads the folder contents from James. Everything is good again until it happens a day or so later on the same folder or another folder. I have Thunderbird on several computers. This consistently occurs on all instances of Thunderbird.

This is by far not a catastrophic problem. But it is a pain. I'm just curious if anyone else is seeing this. I'm pretty familiar with the inner workings of James 3 and the James 3 database structure. Can someone give me a quick explanation of how the folder UIDs are generated. Any idea why the UID would become invalid (unless Thunderbird just decided to start sending totally corrupted UIDs)? Finally, is there some quick debug logging parm I can enable the next time this happens just so I can get a better idea of what invalid UID is being sent and what James thinks about that uid? Even it is totally a Mozilla problem, I'd like to arm myself with some good trace data to take to Mozilla.

Thanks for any assistance you can provide.

Jerry

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