Enum Variable 

#[repr(u8)]
pub enum Variable {
    Sender = 0,
    SenderLocalPart = 1,
    SenderDomainPart = 2,
    Domain = 3,
    Ip = 4,
    ValidatedDomain = 5,
    IpVersion = 6,
    HeloDomain = 7,
    SmtpIp = 8,
    HostDomain = 9,
    CurrentTime = 10,
}

A macro letter (RFC 7208, Section 7.2).

s = <sender>
l = local-part of <sender>
o = domain of <sender>
d = <domain>
i = <ip>
p = the validated domain name of <ip> (do not use)
v = the string "in-addr" if <ip> is ipv4, or "ip6" if <ip> is ipv6
h = HELO/EHLO domain

The following macro letters are allowed only in exp text:

c = SMTP client IP (easily readable format)
r = domain name of host performing the check
t = current timestamp

Variants

Sender = 0

s: the full <sender> address.

SenderLocalPart = 1

l: the local part of <sender>.

SenderDomainPart = 2

o: the domain of <sender>.

Domain = 3

d: the <domain> currently being evaluated.

Ip = 4

i: the client IP, as dotted decimal (IPv4) or dot-separated nibbles (IPv6).

ValidatedDomain = 5

p: the validated domain name of the client IP (use is discouraged).

IpVersion = 6

v: in-addr for IPv4 clients, ip6 for IPv6 clients.

HeloDomain = 7

h: the HELO or EHLO domain.

SmtpIp = 8

c: the client IP in readable form (exp text only).

HostDomain = 9

r: the domain name of the host performing the check (exp text only).

CurrentTime = 10

t: the current time in seconds since the Unix epoch (exp text only).

Trait Implementations

impl Clone for Variable

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Variable

impl Debug for Variable

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Variable

impl PartialEq for Variable

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Variable