10 lines
592 B
Plaintext
10 lines
592 B
Plaintext
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DRAC (Dynamic Relay Authorization Control) is a daemon that dynamically
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updates a relay authorization map for sendmail. It provides a way to
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allow legitimate users to relay mail through an SMTP server, while still
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preventing others from using it as a spam relay. User's IP addresses are
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added to the map immediately after they have authenticated to the POP or
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IMAP server. By default, map entries expire after 30 minutes, but can be
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renewed by additional authentication. Periodically checking mail on a
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POP server is sufficient to do this. The POP and SMTP servers can be on
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different hosts.
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