on zipping old backup folders: Incomplete Zip File

Question / Problem

For several days we have been receiving the warning 'Error on zipping old backup folders: Incomplete Zip File 'What does it mean and how can we solve this ?

Answer / Solution

The error message means that SmartPOP2Exchange is not able to zip the backup mails ofone day because there is a mail file which can 't be added to the zip. This may be caused of a process locking the file or the filename contains characterswhich are not allowed in a zip file.To solve this problem rename that folder (e.g.: 2008-10-29 --> 2008-10-29NoZip). It should be the oldest not jet zipped folder.