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steffo76 | 2 Jul 2012 15:26
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Error decompressing data

Hi list,

I am having trouble with Apple Mail on iPhone and cyrus imapd. In telemetry logging I see the following:

3 OK Completed^M
<1341234999<4 COMPRESS DEFLATE^M
>1341234999>4 OK DEFLATE active^M
>1341235140>* BYE Error decompressing data^M

In my maillog I can see the following

Jul  2 15:24:06 server imap[32304]: zlib inflate error: -3 invalid distance too far back

This is cyrus imapd 2.4.12. Any hints how to resolve this ?

Thanks,
Stephan
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Bron Gondwana | 4 Jul 2012 09:03
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Re: Error decompressing data


On Mon, Jul 2, 2012, at 03:26 PM, steffo76 <at> gmx.de wrote:
> Hi list,
> 
> I am having trouble with Apple Mail on iPhone and cyrus imapd. In telemetry logging I see the following:
> 
> 3 OK Completed^M
> <1341234999<4 COMPRESS DEFLATE^M
> >1341234999>4 OK DEFLATE active^M
> >1341235140>* BYE Error decompressing data^M
> 
> In my maillog I can see the following
> 
> Jul  2 15:24:06 server imap[32304]: zlib inflate error: -3 invalid distance too far back
> 
> This is cyrus imapd 2.4.12. Any hints how to resolve this ?

Workaround:

suppress_capabilities: COMPRESS=DEFLATE

Is this every time, or just sometimes?  It looks like there's a bug in the zlib
usage somewhere along the line.

Bron ( or a bogus virus scanner fiddling the data stream )
--

-- 
  Bron Gondwana
  brong <at> fastmail.fm

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(Continue reading)

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Stephan | 6 Jul 2012 22:32
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Re: Error decompressing data

Am 04.07.2012 09:03, schrieb Bron Gondwana:
>
>
> On Mon, Jul 2, 2012, at 03:26 PM, steffo76 <at> gmx.de wrote:
>> Hi list,
>>
>> I am having trouble with Apple Mail on iPhone and cyrus imapd. In telemetry logging I see the following:
>>
>> 3 OK Completed^M
>> <1341234999<4 COMPRESS DEFLATE^M
>>> 1341234999>4 OK DEFLATE active^M
>>> 1341235140>* BYE Error decompressing data^M
>>
>> In my maillog I can see the following
>>
>> Jul  2 15:24:06 server imap[32304]: zlib inflate error: -3 invalid distance too far back
>>
>> This is cyrus imapd 2.4.12. Any hints how to resolve this ?
>
> Workaround:
>
> suppress_capabilities: COMPRESS=DEFLATE
>
> Is this every time, or just sometimes?  It looks like there's a bug in the zlib
> usage somewhere along the line.
>
> Bron ( or a bogus virus scanner fiddling the data stream )

It was actually caused by the used imap proxy. After switching to 
another one it started working again.
(Continue reading)

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Patrick Boutilier | 6 Jul 2012 23:05
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Re: Error decompressing data


Stephan <steffo76 <at> gmx.de> wrote:

>Am 04.07.2012 09:03, schrieb Bron Gondwana:
>>
>>
>> On Mon, Jul 2, 2012, at 03:26 PM, steffo76 <at> gmx.de wrote:
>>> Hi list,
>>>
>>> I am having trouble with Apple Mail on iPhone and cyrus imapd. In
>telemetry logging I see the following:
>>>
>>> 3 OK Completed^M
>>> <1341234999<4 COMPRESS DEFLATE^M
>>>> 1341234999>4 OK DEFLATE active^M
>>>> 1341235140>* BYE Error decompressing data^M
>>>
>>> In my maillog I can see the following
>>>
>>> Jul  2 15:24:06 server imap[32304]: zlib inflate error: -3 invalid
>distance too far back
>>>
>>> This is cyrus imapd 2.4.12. Any hints how to resolve this ?
>>
>> Workaround:
>>
>> suppress_capabilities: COMPRESS=DEFLATE
>>
>> Is this every time, or just sometimes?  It looks like there's a bug
>in the zlib
(Continue reading)

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