Re: [webmin-l] Failed to save mail file options : Missing or invalidUIDL format

[Jamie C. <jca...@we...>]

On 12/Mar/2009 06:32 da...@da... wrote ..
> Hello Jamie and users, I have been trying to configure and deploy a Java based
> web-mail client. I am having some issues with this client. Before I get flamed
> on the web-mail clients ML I need to make sure the Dovecot IMAP server is running
> correctly. The Dovecot IMAP server is up-and-running (netstat -a) but I noticed
> in the Dovecot webmin module: Dovecot IMAP/POP3 Server ==> Mail Files some fields
> and checkboxes for:
> 
> Mail file location 	 Detect automatically
>                          Inbox and folders in ~/Maildir
> 
> Index files location 	 Default (in Maildir directory)
>                          Other directory
> 
> Control files location 	 Default (in Maildir directory)
>                          Other directory
> ..
> 
> UIDL format              Not set (WARNING - Dove may not start)
> 
> Changing or leaving the defaults give the same error condition: Failed to save
> mail file options : Missing or invalid UIDL format
> 
> For some years now I have used only /Maildir. I don't know what UIDL is and Googling
> this term did not reveal much. If anybody has a howto, resource or link to navigate
> please advise, David.

The 'UIDL format' tells Dovecot how to generate a unique ID for each message for POP3
clients. Slightly annoyingly it isn't set to anything by default, so you have to select
one of the options for Dovecot to run properly. It actually doesn't really matter much
what you choose for a new server - the only time it would matter is if you were switching
IMAP servers. But you do have to select something.

 - Jamie