ISA server and blocking mail from everyone but our domain hosts mail server
We are currently getting more and more spam, its avoiding the spam filter at our isp who hosts the domain.
It is being sent direct to our IP address, and thereby bypassing the spam filter, if it was sent to the domain it would then be filtered by our domain host.
Can isa server be configured to only allow mail to our exchange if it is from our domain hosts mail server??
Answers
Hi
This can be achieve using the Access rule , in the From field you can assign the IPs you want to allow
Inbound SMTP Access
- Marked As Answer byNathan BigmanMSFT, OwnerWednesday, March 04, 2009 7:26 AM
All Replies
Hi
This can be achieve using the Access rule , in the From field you can assign the IPs you want to allow
Inbound SMTP Access
- Marked As Answer byNathan BigmanMSFT, OwnerWednesday, March 04, 2009 7:26 AM
Thanks for your response :-)
In regards to the order of rules, will this make a difference on where we have the rule in the order??
Regards
Hi GMAS
Your are most welcome
ISA Server rules are evaluated in the order in which they appear in the firewall policy
check this link for the Efficient Firewall Policy
http://blogs.technet.com/isablog/archive/2006/06/11/434927.aspx
