Faruque Ahmed : MCP, MCSA, MCSE, MCTS, MCIT, CCNA, OCA, OCP, GCP

Rate limit

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Rate limit set per hour 100 mail for every user in postfix amlaLinux 9

# dnf install policyd-rate-limit

systemctl enable policyd-rate-limitsystemctl start policyd-rate-limit

# vi /etc/policyd-rate-limit.conf

[ratelimit]default_limit = 100/1h

# systemctl restart policyd-rate-limit

default_limit: This sets the default rate limit for all users. Here, it allows 100 emails per hour (100/1h).

# vi /etc/postfix/main.cf

smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_policy_service inet:127.0.0.1:10031

# systemctl restart postfix policyd-rate-limit

(Optional) Customize Rate Limits for Specific Users

# vi /etc/policyd-rate-limit.conf

[ratelimit]default_limit = 100/1huser:john@example.com = 50/1huser:jane@example.com = 200/1h

# systemctl restart policyd-rate-limit

Verify Enforcement

Use the policyd-rate-limit command-line tool to check the current rate limits and usage:

# policyd-rate-limit-cli stats

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