X-Quarantine-Compat		| compat		| sender/recipient addresses blacklisted
X-Quarantine-Compat-Relay	| compat-relay		| sender host address and sender/recipient addresses blacklisted
X-Quarantine-DNSBL		| dnsbl			| sender host address is in DNSBL
X-Quarantine-Fake-Local		| fake-local		| fake local message blacklisted
X-Quarantine-HELO		| helo			| sender helo blacklisted
X-Quarantine-HELO-Forged	| helo-forged		| helo is forged
X-Quarantine-MIME		| mime			| mime error(s) detected
X-Quarantine-Mail-A		| bad-sender-domain-a	| sender domain has bad A record
X-Quarantine-Mail-MX		| bad-sender-domain-mx	| sender domain has bad MX record
X-Quarantine-Mail-NS		| sender-domain-ns	| sender domain has suspicious NS record
X-Quarantine-Mail-SPF		| bad-sender-domain-spf	| sender domain has bad SPF record
X-Quarantine-Mail-TXT		| bad-sender-domain-txt	| sender domain has bad TXT record
X-Quarantine-Optional-Reject	| optional-reject	| message rejected by optional reject
X-Quarantine-Recipient		| recipient		| recipient address blacklisted
X-Quarantine-Relay		| relay			| relay address blacklisted
X-Quarantine-Relay-OS		| relay-os		| relay OS blacklisted
X-Quarantine-Resolve		| resolve		| IP name lookup failed or forged
X-Quarantine-SMTP-Command-MAIL	| smtp-command-mail	| smtp command MAIL syntax error
X-Quarantine-SMTP-Command-RCPT	| smtp-command-rcpt	| smtp command RCPT syntax error
X-Quarantine-SPF		| spf			| \$sender_host_address is not allowed to send mail from \$sender_address_domain
X-Quarantine-Sender		| sender		| sender address blacklisted
X-Quarantine-Sender-Verify	| sender-verify		| sender verify failed
X-Quarantine-Rate		| rate			| ratelimit exceeds