Customers with firewalls
Customers who have local firewalls need to ensure that rules are added for both inbound and outbound mail connections to the IFL mail server farm.

The IP range of this farm is 213.18.248.64/26. The network block and subnet mask you should use is:

Network: 213.18.248.64
Subnet:   255.255.255.192

It may be necessary from time to time to change the IP addresses of the mail server, changes of this nature will be communicated via the IFL System Status mailing list and posted on this page.

If you have questions about configuring local mail servers or what to allow in your firewall, you should contact your usual network support team.