[Dovecot] 2.1: Error: Maildir filename has wrong S value, renamed the file from

[Patrick Domack]

I'm having this problem also, with a very very few users.

But in my case the email isn't double gzip, just single like normal.

Error: read(.../.Deleted  
Messages/cur/1331840112.M186676P27974.5013:2,) failed: Input/output  
error (uid=250)

All I have to do is rename the file to add back the lost S= part and  
all is fine.
This has happened in the inbox, deleted, and trash folders so far. and  
always after a change, the S= exists for new emails. It's like it's  
loosing it on adding the read flag, and mailbox moves

But out of millions of emails, only a very few are like this, that I  
know of, around 6 emails. I manually fixed them, will be looking to  
see if this issue comes back.



Quoting Timo Sirainen <tss at iki.fi>:

> On 2.3.2012, at 12.43, Ralf Hildebrandt wrote:
>
>>> Alternatively you can just tell Dovecot not to care about it:  
>>> maildir_broken_filename_sizes=yes. Although you probably can't do  
>>> that if you have compressed mails.
>>
>> In the case above that mail was gzipped twice :(
>
> Yes, looks like Dovecot can't correctly fix the wrong S size for  
> gzipped mails. I don't know if I should bother fixing it, especially  
> since in your case the doubly-gzipped mails will look corrupted to  
> user..