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@ -56,7 +56,7 @@ smtpd_sasl_auth_enable = yes |
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smtpd_delay_reject = yes |
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smtpd_helo_required = yes |
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# reject hosts with malformed identifiers |
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smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname, reject_unknown_helo_hostname |
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smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname, reject_unknown_reverse_client_hostname |
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# reject hosts that improperly use SMTP commands |
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smtpd_data_restrictions = reject_unauth_pipelining |
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# reject unauthorized relay attempts |
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