Codes

Namespace: global/code

Predefined codes for SMTP responses.

fn code

fn code(code: int, enhanced: String, text: String) -> Result<Code>

Description

A SMTP code with the code and message as parameter and an enhanced code.

fn c554_7_1

fn c554_7_1() -> Code

Description

Return a relay access denied code.

Example

#{
    mail: [
        // Will send "554 5.7.1 Relay access denied" to the client.
        rule "anti relay" || { state::deny(code::c554_7_1()) }
    ]
}

fn c550_7_20

fn c550_7_20() -> Code

Description

Return a DKIM Failure code. (RFC 6376) DKIM signature not found.

Example

#{
    mail: [
        // Will send "550 5.7.20 No passing DKIM signature found" to the client.
        rule "deny with code" || { state::deny(code::c550_7_20()) }
    ]
}

fn c550_7_21

fn c550_7_21() -> Code

Description

Return a DKIM Failure code. (RFC 6376) No acceptable DKIM signature found.

Example

#{
    mail: [
        // Will send "550 5.7.21 No acceptable DKIM signature found" to the client.
        rule "deny with code" || { state::deny(code::c550_7_21()) }
    ]
}

fn c550_7_22

fn c550_7_22() -> Code

Description

Return a DKIM Failure code. (RFC 6376) No valid author matched DKIM signature found.

Example

#{
    mail: [
        // Will send "550 5.7.22 No valid author-matched DKIM signature found" to the client.
        rule "deny with code" || { state::deny(code::c550_7_22()) }
    ]
}

fn c550_7_23

fn c550_7_23() -> Code

Description

Return a SPF Failure code. (RFC 7208) Validation failed.

Example

#{
    mail: [
        // Will send "550 5.7.23 SPF validation failed" to the client.
        rule "deny with code" || { state::deny(code::c550_7_23()) }
    ]
}

fn c550_7_24

fn c550_7_24() -> Code

Description

Return a SPF Failure code. (RFC 7208) Validation error.

Example

#{
    mail: [
        // Will send "550 5.7.24 SPF validation error" to the client.
        rule "deny with code" || { state::deny(code::c550_7_24()) }
    ]
}

fn c550_7_25

fn c550_7_25() -> Code

Description

Return a reverse DNS Failure code.

Example

#{
    mail: [
        // Will send "550 5.7.25 Reverse DNS validation failed" to the client.
        rule "deny with code" || { state::deny(code::c550_7_25()) }
    ]
}

fn c500_7_26

fn c500_7_26() -> Code

Description

Return a multiple authentication failures code.

Example

#{
    mail: [
        // Will send "500 5.7.26 Multiple authentication checks failed" to the client.
        rule "deny with code" || { state::deny(code::c500_7_26()) }
    ]
}

fn c550_7_27

fn c550_7_27() -> Code

Description

Return a Null MX cod. (RFC 7505) The sender address has a null MX record.

Example

#{
    mail: [
        // Will send "550 5.7.27 Sender address has null MX" to the client.
        rule "deny with code" || { state::deny(code::c550_7_27()) }
    ]
}

fn c556_1_10

fn c556_1_10() -> Code

Description

Return a Null MX cod. (RFC 7505) The recipient address has a null MX record.

Example

#{
    mail: [
        // Will send "556 5.1.10 Recipient address has null MX" to the client.
        rule "deny with code" || { state::deny(code::c556_1_10()) }
    ]
}

fn c451_7_1

fn c451_7_1() -> Code

Description

Return a greylisting code (https://www.rfc-editor.org/rfc/rfc6647.html#section-2.1)

Example

#{
    mail: [
        // Will send "451 4.7.1 Sender is not authorized. Please try again." to the client.
        rule "deny with code" || { state::deny(code::c451_7_1()) }
    ]
}

fn c451_3_0

fn c451_3_0() -> Code

Description

Multiple destination domains per transaction is unsupported code.

Example

#{
    mail: [
        // Will send "451 4.3.0 Multiple destination domains per transaction is unsupported. Please try again." to the client.
        rule "deny with code" || { state::deny(code::c451_3_0()) }
    ]
}

fn c550_1_1

fn c550_1_1() -> Code

Description

Multiple destination domains per transaction is unsupported code.

Example

#{
    mail: [
        // Will send "550 5.1.1 No passing DKIM signature found" to the client.
        rule "deny with code" || { state::deny(code::c550_1_1()) }
    ]
}