136 Setting your filtering policy
Preventing relaying
To configure external relay restrictions
1
On the Symantec Mail Security for SMTP administrative interface, in the
left pane, click
Filtering Policy
.
2
In the Anti-Relay window, select one of the following:
■
Allow
■
Do not allow, except for listed hosts (one per line)
3
If desired, type one host name, IP address, or domain per line for mail
servers from which email will be allowed.
Domain name entries in this box will work only if the hosts have
appropriate PTR records.
You can use the * wildcard character as the first element of a domain name
or the last element of an IP address to specify allowed hosts. For example:
*.someplace.com
1.2.3.*
1.2.*
1.*
If Do not allow is selected, and no hosts are listed, Symantec Mail Security
for SMTP rejects all email with a non-local destination.
4
Click
Save Changes
.
Summary of Contents for 11105111 - SYM MAIL SEC SMTP 5.0 SMS PORT MEDIA CD EN
Page 1: ...Symantec Mail Security for SMTP...
Page 8: ...8...
Page 44: ...44 Installing Symantec Mail Security for SMTP Uninstalling Symantec Mail Security for SMTP...
Page 88: ...88 Setting your antivirus policy Setting up your own LiveUpdate server...
Page 124: ...124 Setting your antispam policy Blocking by custom spam rules...
Page 140: ...140 Setting your filtering policy Blocking by custom content rules...
Page 170: ...170...
