This tool will attempt to locate file with invalid S= flag and correct it. It also detects files that were gzipped twice accidentally and fixes that.
It doesn't do any locking. It tampers with filenames and content. THIS THING WILL PROBABLY SET YOUR SERVER ON FIRE
You have been warned. Use at own risk, read the code...
Potentially should be combined with maildirlock, but my FS doesn't support hard links, so I could not get it to work.
You might want to shut down your LDA and Dovecot when you're doing this to avoid clashes and other shenanigans.
nodejs >= 7.0
- Clone from git
- Run
npm install
If you see scary errors in your dovecot error log like Error: Maildir filename has wrong S value and other ones complaining about dovecot.index.log errors,
note the mailbox for which it is happening, navigate to it in the file system and run this tool. It works out of CWD. Run from the mailbox root.
As in if you do ls you should see the {cur,new,tmp} folders.
Only works on one mailbox at a time.
You can also run with a skip parameter domain.com/user/.INBOX #> fix-maildir-size 300 to skip 300 mails from being processed.
You should probably run doveadm index -u <username> <mailbox name> after you're done.
Pull requests welcome. ENJOY!
Broken physical size for mail
Corrupted index cache file
dovecot.index.cache
Cached message size smaller than expected
Cached MIME parts don't match message during parsing: Cached header size mismatch