Restrictions on default.sieve

[@lbutlr]

Are there actions that default.sieve cannot take?

I tried adding 

redirect :copy "backup+...@local.example.com"

and… nothing.

No errors I can find, but also no mail being redirected.

I also tried

# there must be 'from' in the received headers
if header :contains "received" "from" {
   redirect :copy "backup+...@local.example.com"
}

And

if header :index 1 :contains "received" "from" {
   redirect :copy "backup+...@local.example.com"
}

But still, no mail in .foo for the backup user (yes, dovecot is setup to 
autofile +address into mailboxes, and that works).

-- 
You couldn't say, 'I had orders.' You couldn't say, 'It's not fair.'
        No one was listening. There were no Words. You owned yourself.
        ... Not Thou Shalt Not. Say I Will Not. --Feet of Clay