Am 01.02.2012 14:56, schrieb Paul J Stevens:
> On 02/01/2012 01:04 PM, Reindl Harald wrote:
>> hi, a question about IMAP-capabilities
>>
>> this is the default banner OK [CAPABILITY IMAP4rev1 AUTH=LOGIN
>> AUTH=CRAM-MD5 STARTTLS ID] dbmail 3.0.0 ready
> 
> It's de pre-auth banner.
> 
>>
>> this is in the "dbmail.conf" of the package capability = IMAP4
>> IMAP4rev1 AUTH=LOGIN ACL RIGHTS=texk NAMESPACE CHILDREN SORT QUOTA
>> THREAD=ORDEREDSUBJECT UNSELECT IDLE
> 
> After authentication the AUTH= capabilities are removed and the other
> ones in the capability string are added.
> 
> Testing against my dogfood server:
> 
> ~> nc myhost imap
> * OK [CAPABILITY IMAP4rev1 AUTH=LOGIN STARTTLS ID] dbmail 3.0.0 ready
> x login testuser1 test
> x OK [CAPABILITY IMAP4rev1 ACL RIGHTS=texk NAMESPACE CHILDREN SORT
> QUOTA THREAD=ORDEREDSUBJECT UNSELECT IDLE STARTTLS ID] User testuser1
> authenticated
> x logout
> * BYE
> x OK LOGOUT completed
> 
> So my server doesn't support AUTH=CRAM-MD5 because I use LDAP.

hm - this is bad

the "pre-auth banner" should display exactly the same as really
supported - we had a pitfall with dovecot-2.0 as proxy in front
of dbmail where dovecot ignored the capability setting in
"dovecot.conf" and spittet out his own in the greeting screen

resulted in iPhones were no longer able to check mails because
they are reading the banner and after that working with the
capabilities from it

after a fix for dovecot to provide the dbmail capabilities
in the greeting string all worked fine again



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