Error: Corrupted index cache file and Error: Maildir filename has wrong S value

Brent Clark brentgclarklist at
Mon Nov 11 12:26:22 EET 2019

Good day Guys

Just an update, my colleague and I came across this script.

We made a backup, ran it, but unfortunately the problem still persists.


On 2019/11/11 11:42, Brent Clark wrote:
> Good day Guys
> I have been met with a very interesting set of error messages.
> Here is the snippet(s)
> (Sorry for all the redacted REMOVED_*.)
> Google is proving to be a bit challenging in helping and explaining.
> Could anyone please share how something like this happens, but more 
> importantly how to recover from this.
> doveadm index -u <username> INBOX do the trick?
> I also would like to ask the community, is there any tips or tricks any 
> of you guys do to mitigate index / cache corruptions.
> Many thanks
> Regards
> Brent Clark

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