How to ignore error 24 or mask it out in bash rsync script

[Mi]

Hi,

My cron backup scripts often send me mails because of error 24 (Partial transfer due to vanished source files). However, this is normal when backing up user homes with IMAP folders. So I would like to suppress only this particular error.

I have not found an rsync option to suppress this error. Is there some way to filter this out?

Thanks,

Mi