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ProSecure Web/Email Security Threat Management (STM) Appliance Reference Manual
Content Filtering and Optimizing Scans 4-17
v1.0, September 2009
2. Complete the fields as explained in Table 4-6.
Configuring the Real-time Blacklist
Blacklist providers are organizations that collect IP addresses of verified open SMTP relays that
might be used by spammers as media for sending spam. These known spam relays are compiled by
blacklist providers and are made available to the public in the form of real-time blacklists (RBLs).
By accessing these RBLs, the STM can block spam originating from known spam sources.
Table 4-7. Whitelist/Blacklist Settings
Setting Description
Sender IP Address (SMTP)
Whitelist Enter the source IP addresses from which e-mails can be trusted.
Blacklist Enter the source IP addresses from which e-mails are blocked.
Click Apply to save your settings or click Reset to clear all entries from these fields.
Sender Domain (SMTP and POP3)
Whitelist Enter the sender e-mail domains from which e-mails can be trusted.
Blacklist Enter the sender e-mail domains from which e-mails are blocked.
Click Apply to save your settings or click Reset to clear all entries from these fields.
Sender Email Address (SMTP and POP3)
Whitelist Enter the e-mail addresses from which e-mails can be trusted.
Blacklist Enter the e-mail addresses from which e-mails are blocked.
Click Apply to save your settings or click Reset to clear all entries from these fields.
Recipients Domain (SMTP and POP3)
Whitelist Enter the e-mail domains of the recipients to which e-mails can be safely delivered.
Click Apply to save your settings or click Reset to clear all entries from this field.
Recipients Email Address (SMTP and POP3)
Whitelist Enter the e-mail addresses of the recipients to which e-mails can be safely delivered.
Click Apply to save your settings or click Reset to clear all entries from this field.
Note: In the fields of the Whitelist/Blacklist screen, use commas to separate multiple
entries. For IP addresses, use a dash to indicate a range (for example,
192.168.32.2-192.168.32.8.)