Re: [fetchmail-devel] Fetchmail & Yahoo

[Valentin M. <fet...@mr...>]

-------- Original Message --------
Subject: 	Re: [fetchmail-devel] Fetchmail & Yahoo
Date: 	Wed, 24 Jun 2009 15:44:59 +0300
From: 	Valentin Manea <fet...@mr...>
To: 	Matthias Andree <mat...@gm...>





On 06/23/2009 04:38 PM, Matthias Andree wrote:
> Valentin Manea schrieb:
>
>    
>>     This has been hunting me for a while now but it seems after Yahoo
>> released Zimbra it is possible to get your email from Yahoo without
>> those ugly solutions. The catch is that before authentication you have
>> to send a custom command to the server. I've made a small change in
>> imap.c and now finally I can use fetchmail with my free yahoo account.
>> As I'm not that familiar with the developing for fetchmail I would
>> really not send a patch but only describe what I did.
>>      
>
>    
>>     So I've just added this line:
>> gen_transact(sock, "ID (\"guid\" \"1\")");
>> in *imap_getauth* after the SSL stuf. This doesn't seem to affect normal
>> IMAP servers in any way.
>>      
>
> Where would I look for documentation for this Yahoo IMAP server requirement, or
> how else have you found out what was needed? Is this "1" really a constant?
> Technically, it seems to be RFC-2971 and if the Zimbra server side, or Yahoo's
> deployment, actually requires this, it is a RFC-2971 violation, see the "MUST
> NOT" clauses in section 3 of said RFC.
>
> Does it work to send . ID NIL?
> I should rather not like to send random data there unless needed, and GUID
> raises some suspicions...
>
> Thank you&  best regards
> Matthias Andree
>    
Damned Reply, once more with the correct address:

There is no documentation, I've just sniffed an older Zimbra Desktop 
which did not use SSL.

You are right, it is not RFC-2971 because I'm unable to login using ID 
NIL and also it doesn't seem to accept other tags. Also *1* does not 
seem to be a constant, I've tried some random numbers and I was still 
able to login.

Best Regards,
Valentin