hey,
looking at http://www.postfix.org/cidr_table.5.html:
ADDRESS PATTERN SYNTAX
[...]
An IPv4 network address is a sequence of four decimal octets
separated
by ".", [...]
numbers beginning with 0 are probably interpreted as octal octets, not as
decimal octets.
on another note:
why not restrict client access with 'smtpd_client_restrictions'?
i have something like:
smtpd_client_restrictions = [...], check_client_access
hash:/etc/postfix/client_access, [...]
and /etc/postfix/client_access looks like:
1.2.3.4 OK
3.4.5.6 OK
but maybe this solves another problem you don't have...
greetings...