Microsoft
Software
Hardware
Network
Question : Need to lock down SMTP traffic - Urgent!
Hi Experts, sorry to spring an urgent request on you. We've had an Admin guy make changes to our ASA firewall & we are accepting SMTP traffic from anywhere rather than Messagelabs (our mail scanners).
ML's have suspended outbound mail until I lock down SMTP traffic so, I need to configure my ASA to allow SMTP traffic in from the following IP range only:
216.82.240.0 255.255.240.0 /20 216.82.240.0 - 216.82.255.255
67.219.240.0 255.255.240.0 /20 67.219.240.0 - 67.219.255.255
85.158.136.0 255.255.248.0 /21 85.158.136.0 - 85.158.143.255
95.131.104.0 255.255.248.0 /21 95.131.104.0 - 95.131.111.255
117.120.16.0 255.255.248.0 /21 117.120.16.0 - 117.120.23.255
193.109.254.0 255.255.254.0 /23 193.109.254.0 - 193.109.255.255
194.106.220.0 255.255.254.0 /23 194.106.220.0 - 194.106.221.255
195.245.230.0 255.255.254.0 /23 195.245.230.0 - 195.245.231.255
Could you let me know the syntax please?
Many thanks in advance.
Answer : Need to lock down SMTP traffic - Urgent!
hi,
show ip access-list and see the current running enties , may be the entry for line 12 is not matching.
Random Solutions
Crystal cross-tab page numbering
Outlook Contact Consolidation
How to enable workstation users to install software through GPO using SBS 2008
Send two files in email as attachment in unix shell scripting using ksh
childWindow
Setting Compatibility Mode in IE8 using JavaScript
How to handle button click without reloading page first
How do I set up my wireless network?
change SQLserver 2005 to mix mode
C# - Can a partial class override a property's get method?