Strange problem with new ISP

["Ralph Utbult" <ralph.utbult@gbg.abf.se>]

I've had my firewall for over four years now. It's been upgraded from 2.? to
2.8, but not since. It hasn't caused me any trouble, until we changed ISP.
Suddenly, a lot of mail bounces (I run sendmail, cucipop, squid) and it
won't let me use attachments in hotmail. We have done a lot of work, trying
to find the source. As a last, I took another machine and installed a fresh
OpenBSD 3.2 on it. No sendmail configuration, no cucipop, no squid. The only
thing I've done with it is setting up PF - a small amount of rules, just to
keep me happy ;) This damn thing does the exact same as the old one,
refusing me to attach files in hotmail (and other web-based mail services)!
So, what is the problem? I give you my PF.conf in the hope that you find
something missing there.

Regards,
Ralph Utbult

# scrub in all

enic=”xl0”	external NIC
inic=”de0”	internal NIC

nat on $enic from 192.168.1.0/24 to any ->62.127.120.98

block in log all
pass out on $enic all
pass in quick on $inic all
pass out quick on $inic all
pass in quick on lo0 all

block in log quick on $enic from {0.0.0.0/32, 10.0.0.0/8, 127.0.0.0/8, \
172.16.0.0/12, 192.168.0.0/16, 255.255.255.25/32} to any

pass in quick on $enic inet proto icmp all icmp-type 0
pass in quick on $enic inet proto icmp all icmp-type 3
pass in quick on $enic inet proto icmp all icmp-type 11

pass in quick on $enic inet proto tcp from any to any port 22 flags S/SA
keep state

pass  out on $enic proto tcp all keep state