dovecot - Sep 2010 - Authentication with lower case username ONLY

Hi,

how do you guys force your users to authenticate with lower case letters 
ONLY? Or convert it?
Is there a SASL Option to force that - or are you using scripts i.e. a 
bash script in combination with the command "tr" ... or a third
solution
I didn't think of yet?


I'm using Postfix / Dovecot combination. Postfix is told to use Dovecots 
SASL Service to authenticate it's users.
For my outgoing eMails I already wrote a script with tr which forms 
upercase usernames to lowercase ones ... but it's not enough. 
SpamAssassin is still confused and writes uppercase letters in it's 
Database etc. ... So that's why I'm looking for a more universal
solution.


P.S. I would basically prefer a convertation - but I would also be fine 
with a forced lower case auth system.



Thanks & Regards

check http://wiki2.dovecot.org/Variables -> Modifiers

You can apply a modifiers for each variable (e.g. %Us = POP3):

    * %L - lowercase
    * %U - uppercase

2010/9/15 Leander S. <info at netocean.de>:
> ?Hi,
>
> how do you guys force your users to authenticate with lower case letters
> ONLY? Or convert it?
> Is there a SASL Option to force that - or are you using scripts i.e. a bash
> script in combination with the command "tr" ... or a third
solution I didn't
> think of yet?
>
>
> I'm using Postfix / Dovecot combination. Postfix is told to use
Dovecots
> SASL Service to authenticate it's users.
> For my outgoing eMails I already wrote a script with tr which forms
upercase
> usernames to lowercase ones ... but it's not enough. SpamAssassin is
still
> confused and writes uppercase letters in it's Database etc. ... So
that's
> why I'm looking for a more universal solution.
>
>
> P.S. I would basically prefer a convertation - but I would also be fine
with
> a forced lower case auth system.
>
>
>
> Thanks & Regards
>

On Wed, 15 Sep 2010 10:19:10 -0700
Chris <cjl at viptalk.net> articulated:
> 
> On Sep 15, 2010, at 10:07 AM, Jerry wrote:
> 
> > 
> > Out of morbid curiosity, why do you feel the need to convert the
> > user names to lower case?
> > 
> 
> Because %L in a config file is better than a user on the phone?
> 
> If there are no upper-case letters in user names, there is no reason
> a login should fail because of an upper-case letter in a user name.
spamvoll at googlemail.com != cjl at viptalk.net

-- 
Jerry ?
Dovecot.user at seibercom.net

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