Mapping other Inbox method (symlink vs ACL)

[Kevin Laurie]

Hi,
I am trying to map a account(bob at mydomain.com) to help at mydomain.com. I
would like him to see/access Inbox,Sent,Junk,Trash of
help at mydomain.com . What would you reckon would be the best way to do
this? ACL or Symlink?

With symlink, I dont think I will be able to set permissions.
Is it possible to use ACL to get the entire email account access(the
inbox, junk, sent etc.)?