[Dovecot] Folder names

[Keith Edmunds]

I'm not sure offhand exactly which version of Dovecot I'm running - it
doesn't seem to have a -V switch. Anyway, I created a folder which had
periods in the name. There was no problem with that, but MUAs now report
that folder as a hierarchy. For example:

customers
|
+-customername.com
|
+-another.customer.com

has become:

customers
|
+-customername
| |
| +-com
|
+-another
  |
  +-customer
    |
    +-com

Now the obvious answer is "don't do that". However, should Dovecot
either a) refuse to create a folder with an embedded period in the name
or 2) manage (somehow) the fact that not all periods represent
hierarchical delimiters?

Keith

PS Damn fine software, Dovecot