Make PL/pgSQL function feed back identity for mailboxes/relocated when there
are catchall destinations.
Without catchall aliases, if no virtual_alias matches, the query can just
return NULL and Postfix will later check mailboxes/relocated for the address
to rewrite.
However, since virtual aliases are handled long before mailboxes/relocated,
a catchall alias would also catch mail to mailboxes and relocated addresses,
which we do not want.
The way to tell postfix to keep delivering is for the virtual alias map to
return the search key itself (identity function).
This patch changes the postfix_virtual_alias_maps Pl/pgSQL function to do
exactly that, but only if there are catchall destinations defined for the
domain in question — otherwise it returns NULL when no match is found.
# -*- coding: UTF-8 -*-
# Copyright (c) 2010 - 2011, Pascal Volk
# See COPYING for distribution information.
"""
VirtualMailManager.pycompat
VirtualMailManager's compatibility stuff for Python 2.4
"""
# http://docs.python.org/library/functions.html#all
try:
all = all
except NameError:
def all(iterable):
"""Return True if all elements of the *iterable* are true
(or if the iterable is empty).
"""
for element in iterable:
if not element:
return False
return True
# http://docs.python.org/library/functions.html#any
try:
any = any
except NameError:
def any(iterable):
"""Return True if any element of the *iterable* is true. If the
iterable is empty, return False.
"""
for element in iterable:
if element:
return True
return False