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. <i...@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
>
