RE: [maildropl] a "TO" predefined variable?

[Paul C. <mai...@li...>]

If you're using a recent version of postfix, it adds an 'X-Original-To'
header that indicates the address postfix was originally asked to deliver
this piece of mail to - before aliasing, virtual domains, etc.

I use a virtual subdomain for my mailing list subscriptions, and use the
'X-Original-To' header to route incoming mail to the right maildir.

The other tip is to limit the pattern match to the header only - append
':h' to the regex (it's mentioned in the maildrop docs).

Paul

> if (/^To: (.*)ro...@xx.../)
> {
>     to "Maildir/.root/"
> }
> 
> So I could filter mails that sent to specifically root
> to a particular folder. (The mails under Postfix are
> redirected to an user account, so I need to
> single-handed out mails that are sent particularly to
> root.) I was afraid this pattern matching would make
> filtering much, much slower since it seems to imply
> sorting through the entire mail, header and body
> included, to find the string.