Re: Tuning some defaults for 2.5: lmtp_downcase_rcpt

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Am 11.02.2011 15:06, schrieb Jeroen van Meeuwen (Kolab Systems):

André Schild wrote:

> Hello,

>

> Am 11.02.2011 14:11, schrieb Jeroen van Meeuwen (Kolab Systems):

> > Long story short; the proposal is to ship with a default

> > lmtp_downcase_rcpt of 1.

>

> Sound OK for me.

>

> When chaning upper/lowercases we always have to consider character sets.

> For the user part it's no problem because here only basic characters are

> allowed,

> but what about a mailbox like: user@BÜCHER.CH ?

>

I don't think these characters are allowed in DNS / KRB, so hopefully that addresses that concern.


@bücher.ch is allowed.
In dns this is represented as a IDN encoded name in the form of

 xn--bcher-kva.ch
is the ACE string, and it is this string that is entered in the DNS.

For technical reasons, the character string that has been processed by the algorithm is several

https://www.nic.ch/reg/wcmPage.action;jsessionid=256F10E27B3713EEAF8E2FBD89827125?lid=en&plain=&res=/reg/guest/faqs/idn.jsp

André
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