Shouldn't an event of this type trigger a useful warning instead of a cryptic 
programming error?

On Thu, Dec 13, 2018 at 07:42, Timo Sirainen <t...@iki.fi> wrote:

> On 13 Dec 2018, at 7.31, SH Development <listacco...@starionline.com> wrote:
>>
>> I have started getting these in my log. What does this mean and what do I 
>> need to do?
>>
>> Panic: file mail-index-util.c: line 37 (mail_index_uint32_to_offset): 
>> assertion failed: (offset < 0x40000000)
>
> Your dovecot.index.cache file has grown too huge. The only solution now is to 
> delete it, and perhaps try to shrink the number of mails in the folder as 
> well. The downside to deleting cache is that it may temporarily slow down 
> performance for accessing the folder, depending on the IMAP client.

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