Shulou(Shulou.com)06/01 Report--

1. Edit configuration file

# vi / etc/postfix/main.cf add the following line smtpd_sender_restrictions = check_sender_access hash:/etc/postfix/sender_access

two。 Create a blacklist list

# vi / etc/postfix/sender_accesstest@example.com REJECT # reject the sender exmaple.com REJECT # reject the domain name 1.2.3.4 REJECT # reject IP

3. Generate blacklist database

# postmap / etc/postfix/sender_access# ll / etc/postfix/sender_access.db

4. Restart the postfix service

# / etc/init.d/postfix reload

5. If you remove the sender from the blacklist, you need to delete the sender

# postmap / etc/postfix/sender_access# / etc/init.d/postfix reload

Once the result has been tested, the test content will not be posted.

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