problems on folders containing @

[Robert Mueller]

> why does this give an error?
>
> x create test at test
> x NO Invalid mailbox name
>
> Why isn't it allowed at Cyrus that folders contain an @-sign? It was 
> allowed with dovecot and courier-imap and it is possible to create folders 
> with several other characters like Umlauts and spaces. Why is the @-sign 
> blocked?
>
> Well, I'm using "virtualdomains: userid", but that shouldn't keep me from 
> creating folders within the mailbox as it shouldn't interfere with each 
> other.

It seems cyrus doesn't allow folders to contain @ when you're in 
virtualdomains mode. Obviously things like this might be a bit confusing:

user.blah.xyz at sub@something.com

Though not technically ambiguous. Though commands like this are harder:

. list user.blah* @s*

To interpret a meangingful result from. Maybe Ken can give more explanation 
as to why.

Rob