2 Apr
                
                    2016
                
            
            
                2 Apr
                
                '16
                
            
            
            
        
    
                7:50 a.m.
            
        On 2/04/2016 6:09 AM, use experience wrote:
UID means unique identification number used to store mail. Any help is appreciated?.
There are UIDs and there are UIDs.....
I think that you will find a unique ID in the email header, if you are processing other metadata from the header, this will be there too.
The UID in the dovecot-uidlist file may or may not be useful; but the ID in the email header should be.
Cheers AndrewM