Installation manual
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In the Allowed IP addresses tab you can specify IPs that should be approved, i.e., if the first non-ignored IP in
Received headers matches any address in this list, the message scores 0 and no other checks are made.
In the Ignored IP addresses tab you can specify IPs that should be ignored during Real-time Blackhole List (RBL)
checks. You should include all internal IP addresses within the firewall not directly accessible from the Internet.
Doing so prevents unnecessary checks and helps identify actual connecting IP addresses. Internal IP addresses are
already skipped by the engine (192.168.x.y and 10.x).
In the Blocked IP addresses tab you can specify IPs that should be blocked, i.e., if any non-ignored IP in Received
headers matches the address in this list, the message scores 100 and no other checks are made.
In the Ignored body URLs tab you can specify domains used in the message body that should always be excluded
from the DNSBL and MSBL checks and ignored.
In the Blocked body URLs tab you can specify domains used in the message body that should always be blocked.
NOTE: Unlike with IP addresses, wildcards cannot be used when adding domains.
The antispam and greylisting technologies allow also the use of the so-called whitelisting.
Possibilities of application of whitelisting for greylisting
Microsoft Exchange 2003
- list of allowed IP addresses in the Exchange IMF (Connection filtering > Global Accept List)
- list of allowed and ignored IP addresses in the ESET Mail Security settings