Dear all

I have squid 3.0 proxy server, having manual proxy setting users of my lan are facing the problem that they can not send and recieve eamils using out look. I have set the Iptables as under

$IPT -A tcp_inbound -p TCP -s 0/0 --destination-port 62000:64000 -j ACCEPT
# Email Server (SMTP)
$IPT -A tcp_inbound -p TCP -s 0/0 --destination-port 25 -j ACCEPT

$IPT -A tcp_inbound -p TCP -s 0/0 --destination-port 587 -j ACCEPT
# Email Server (POP3)
$IPT -A tcp_inbound -p TCP -s 0/0 --destination-port 110 -j ACCEPT
# Email Server (IMAP4)
$IPT -A tcp_inbound -p TCP -s 0/0 --destination-port 143 -j ACCEPT
$IPT -A tcp_inbound -p TCP -s 0/0 --destination-port 993 -j ACCEPT
# SSL Email Server (POP3)
$IPT -A tcp_inbound -p TCP -s 0/0 --destination-port 995 -j ACCEPT
# SSL Email Server (IMAP4)
$IPT -A tcp_inbound -p TCP -s 0/0 --destination-port 993 -j ACCEPT
# sshd
$IPT -A tcp_inbound -p TCP -s 0/0 --destination-port 22 -j ACCEPT
# ICQ File Transfers & Other Advanced Features
Regards
Gul Nawaz

Do they try working with email through your proxy-server ?

Yes they are using my proxy server with defult port 3128. They set the default ports of POP and IMAP in MS Outlook client but when request for testing the ports it fails.

Regard

Show please the part of the Squid config file which has the rules for working with email.