mirror of
https://github.com/chatmail/relay.git
synced 2026-08-10 10:30:51 +00:00
refactor: Use a custom, minimal SMTP client instead of lettre (#33)
This disables the Nagle's algorithm on re-insertion. Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
This commit is contained in:
Jagoda Estera Ślązak
committed by
GitHub
GitHub
parent
8d18b73681
commit
0ee1e9924c
Generated
+9
-492
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|
||||
checksum = "728a70f3dbaf5bab7f0c4b1ac8d7ae5ea60a4b5549c8a5914361c99147a709d2"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "testresult"
|
||||
version = "0.4.1"
|
||||
@@ -1111,16 +818,6 @@ dependencies = [
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tinystr"
|
||||
version = "0.8.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "42d3e9c45c09de15d06dd8acf5f4e0e399e85927b7f00711024eb7ae10fa4869"
|
||||
dependencies = [
|
||||
"displaydoc",
|
||||
"zerovec",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tokio"
|
||||
version = "1.49.0"
|
||||
@@ -1185,36 +882,12 @@ version = "1.0.22"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9312f7c4f6ff9069b165498234ce8be658059c6728633667c526e27dc2cf1df5"
|
||||
|
||||
[[package]]
|
||||
name = "url"
|
||||
version = "2.5.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ff67a8a4397373c3ef660812acab3268222035010ab8680ec4215f38ba3d0eed"
|
||||
dependencies = [
|
||||
"form_urlencoded",
|
||||
"idna",
|
||||
"percent-encoding",
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "utf8_iter"
|
||||
version = "1.0.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
|
||||
|
||||
[[package]]
|
||||
name = "utf8parse"
|
||||
version = "0.2.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
|
||||
|
||||
[[package]]
|
||||
name = "version_check"
|
||||
version = "0.9.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
|
||||
|
||||
[[package]]
|
||||
name = "wasi"
|
||||
version = "0.11.1+wasi-snapshot-preview1"
|
||||
@@ -1323,22 +996,13 @@ version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
|
||||
|
||||
[[package]]
|
||||
name = "windows-sys"
|
||||
version = "0.59.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
|
||||
dependencies = [
|
||||
"windows-targets 0.52.6",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-sys"
|
||||
version = "0.60.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
|
||||
dependencies = [
|
||||
"windows-targets 0.53.5",
|
||||
"windows-targets",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
@@ -1350,22 +1014,6 @@ dependencies = [
|
||||
"windows-link",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-targets"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm 0.52.6",
|
||||
"windows_aarch64_msvc 0.52.6",
|
||||
"windows_i686_gnu 0.52.6",
|
||||
"windows_i686_gnullvm 0.52.6",
|
||||
"windows_i686_msvc 0.52.6",
|
||||
"windows_x86_64_gnu 0.52.6",
|
||||
"windows_x86_64_gnullvm 0.52.6",
|
||||
"windows_x86_64_msvc 0.52.6",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-targets"
|
||||
version = "0.53.5"
|
||||
@@ -1373,106 +1021,58 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4945f9f551b88e0d65f3db0bc25c33b8acea4d9e41163edf90dcd0b19f9069f3"
|
||||
dependencies = [
|
||||
"windows-link",
|
||||
"windows_aarch64_gnullvm 0.53.1",
|
||||
"windows_aarch64_msvc 0.53.1",
|
||||
"windows_i686_gnu 0.53.1",
|
||||
"windows_i686_gnullvm 0.53.1",
|
||||
"windows_i686_msvc 0.53.1",
|
||||
"windows_x86_64_gnu 0.53.1",
|
||||
"windows_x86_64_gnullvm 0.53.1",
|
||||
"windows_x86_64_msvc 0.53.1",
|
||||
"windows_aarch64_gnullvm",
|
||||
"windows_aarch64_msvc",
|
||||
"windows_i686_gnu",
|
||||
"windows_i686_gnullvm",
|
||||
"windows_i686_msvc",
|
||||
"windows_x86_64_gnu",
|
||||
"windows_x86_64_gnullvm",
|
||||
"windows_x86_64_msvc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.53.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a9d8416fa8b42f5c947f8482c43e7d89e73a173cead56d044f6a56104a6d1b53"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.53.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b9d782e804c2f632e395708e99a94275910eb9100b2114651e04744e9b125006"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.53.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "960e6da069d81e09becb0ca57a65220ddff016ff2d6af6a223cf372a506593a3"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnullvm"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnullvm"
|
||||
version = "0.53.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "fa7359d10048f68ab8b09fa71c3daccfb0e9b559aed648a8f95469c27057180c"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.53.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1e7ac75179f18232fe9c285163565a57ef8d3c89254a30685b57d83a38d326c2"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.53.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9c3842cdd74a865a8066ab39c8a7a473c0778a3f29370b5fd6b4b9aa7df4a499"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.53.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0ffa179e2d07eee8ad8f57493436566c7cc30ac536a3379fdf008f47f6bb7ae1"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.53.1"
|
||||
@@ -1494,35 +1094,6 @@ version = "0.51.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"
|
||||
|
||||
[[package]]
|
||||
name = "writeable"
|
||||
version = "0.6.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9edde0db4769d2dc68579893f2306b26c6ecfbe0ef499b013d731b7b9247e0b9"
|
||||
|
||||
[[package]]
|
||||
name = "yoke"
|
||||
version = "0.8.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "72d6e5c6afb84d73944e5cedb052c4680d5657337201555f9f2a16b7406d4954"
|
||||
dependencies = [
|
||||
"stable_deref_trait",
|
||||
"yoke-derive",
|
||||
"zerofrom",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "yoke-derive"
|
||||
version = "0.8.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b659052874eb698efe5b9e8cf382204678a0086ebf46982b79d6ca3182927e5d"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"synstructure",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerocopy"
|
||||
version = "0.8.33"
|
||||
@@ -1542,57 +1113,3 @@ dependencies = [
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerofrom"
|
||||
version = "0.1.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "50cc42e0333e05660c3587f3bf9d0478688e15d870fab3346451ce7f8c9fbea5"
|
||||
dependencies = [
|
||||
"zerofrom-derive",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerofrom-derive"
|
||||
version = "0.1.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d71e5d6e06ab090c67b5e44993ec16b72dcbaabc526db883a360057678b48502"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
"synstructure",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerotrie"
|
||||
version = "0.2.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2a59c17a5562d507e4b54960e8569ebee33bee890c70aa3fe7b97e85a9fd7851"
|
||||
dependencies = [
|
||||
"displaydoc",
|
||||
"yoke",
|
||||
"zerofrom",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerovec"
|
||||
version = "0.11.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6c28719294829477f525be0186d13efa9a3c602f7ec202ca9e353d310fb9a002"
|
||||
dependencies = [
|
||||
"yoke",
|
||||
"zerofrom",
|
||||
"zerovec-derive",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerovec-derive"
|
||||
version = "0.11.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "eadce39539ca5cb3985590102671f2567e659fca9666581ad3411d59207951f3"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
@@ -16,10 +16,6 @@ serini = "0.2.2"
|
||||
tokio = { version = "1.49.0", features = ["full"] }
|
||||
thiserror = "2.0.18"
|
||||
mailparse = "0.16.1"
|
||||
lettre = { version = "0.11.19", default-features = false, features = [
|
||||
"smtp-transport",
|
||||
"tokio1",
|
||||
] }
|
||||
log = "0.4.29"
|
||||
env_logger = "0.11.8"
|
||||
governor = "0.10.4"
|
||||
|
||||
@@ -10,4 +10,23 @@ pub enum Error {
|
||||
Io(#[from] std::io::Error),
|
||||
#[error("OpenPGP packet header is truncated - can't validate!")]
|
||||
TruncatedHeader,
|
||||
#[error("Unable to send email, Error during {context}, server said: {raw_smtp_answer}")]
|
||||
MailSend {
|
||||
context: String,
|
||||
raw_smtp_answer: String,
|
||||
},
|
||||
}
|
||||
|
||||
impl Error {
|
||||
/// Formats [`Error`] as an SMTP response.
|
||||
pub fn smtp_response(&self) -> String {
|
||||
match self {
|
||||
// We transparently pass postfix/milter errors reported on reinjection
|
||||
Error::MailSend {
|
||||
raw_smtp_answer, ..
|
||||
} => raw_smtp_answer.clone(),
|
||||
Error::TruncatedHeader => self.to_string(),
|
||||
_ => "451 Local error".to_string(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -5,11 +5,10 @@ use crate::config::Config;
|
||||
use crate::message::{check_encrypted, is_securejoin};
|
||||
use crate::smtp_server::SmtpHandler;
|
||||
use async_trait::async_trait;
|
||||
use lettre::{AsyncSmtpTransport, AsyncTransport, Tokio1Executor};
|
||||
use mailparse::{MailHeaderMap, parse_mail};
|
||||
|
||||
pub use crate::smtp_server::Envelope;
|
||||
use crate::utils::{extract_address, format_smtp_error};
|
||||
use crate::utils::extract_address;
|
||||
|
||||
/// Handler for incoming SMTP messages.
|
||||
pub struct IncomingBeforeQueueHandler {
|
||||
@@ -80,30 +79,12 @@ impl SmtpHandler for IncomingBeforeQueueHandler {
|
||||
async fn reinject_mail(&self, envelope: &Envelope) -> Result<(), String> {
|
||||
log::debug!("Re-injecting the mail that passed checks");
|
||||
|
||||
let mailer = AsyncSmtpTransport::<Tokio1Executor>::builder_dangerous("localhost")
|
||||
.port(self.config.postfix_reinject_port_incoming)
|
||||
.build();
|
||||
|
||||
let envelope_data = lettre::address::Envelope::new(
|
||||
Some(
|
||||
envelope
|
||||
.mail_from
|
||||
.parse()
|
||||
.map_err(|e| format!("Invalid from address: {}", e))?,
|
||||
),
|
||||
envelope
|
||||
.rcpt_to
|
||||
.iter()
|
||||
.map(|addr| addr.parse())
|
||||
.collect::<Result<Vec<_>, _>>()
|
||||
.map_err(|e| format!("Invalid to address: {}", e))?,
|
||||
)
|
||||
.map_err(|e| format!("Failed to create envelope: {}", e))?;
|
||||
|
||||
mailer
|
||||
.send_raw(&envelope_data, &envelope.data)
|
||||
crate::smtp_client::send(self.config.postfix_reinject_port_incoming, envelope)
|
||||
.await
|
||||
.map_err(format_smtp_error)?;
|
||||
.map_err(|e| {
|
||||
log::warn!("Failed to re-inject mail: {}", e);
|
||||
e.smtp_response()
|
||||
})?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
@@ -30,6 +30,7 @@ pub(crate) mod inbound;
|
||||
pub(crate) mod message;
|
||||
pub(crate) mod openpgp;
|
||||
pub(crate) mod outbound;
|
||||
pub(crate) mod smtp_client;
|
||||
pub(crate) mod smtp_server;
|
||||
pub(crate) mod utils;
|
||||
|
||||
|
||||
@@ -5,10 +5,9 @@ use crate::config::Config;
|
||||
use crate::message::{check_encrypted, is_securejoin, recipient_matches_passthrough};
|
||||
pub use crate::smtp_server::Envelope;
|
||||
use crate::smtp_server::SmtpHandler;
|
||||
use crate::utils::{extract_address, format_smtp_error};
|
||||
use crate::utils::extract_address;
|
||||
use async_trait::async_trait;
|
||||
use governor::{DefaultKeyedRateLimiter, Quota, RateLimiter};
|
||||
use lettre::{AsyncSmtpTransport, AsyncTransport, Tokio1Executor};
|
||||
use mailparse::{MailHeaderMap, parse_mail};
|
||||
|
||||
/// Handler for outgoing SMTP messages.
|
||||
@@ -127,30 +126,12 @@ impl SmtpHandler for OutgoingBeforeQueueHandler {
|
||||
async fn reinject_mail(&self, envelope: &Envelope) -> Result<(), String> {
|
||||
log::debug!("Re-injecting the mail that passed checks");
|
||||
|
||||
let mailer = AsyncSmtpTransport::<Tokio1Executor>::builder_dangerous("localhost")
|
||||
.port(self.config.postfix_reinject_port)
|
||||
.build();
|
||||
|
||||
let envelope_data = lettre::address::Envelope::new(
|
||||
Some(
|
||||
envelope
|
||||
.mail_from
|
||||
.parse()
|
||||
.map_err(|e| format!("Invalid from address: {}", e))?,
|
||||
),
|
||||
envelope
|
||||
.rcpt_to
|
||||
.iter()
|
||||
.map(|addr| addr.parse())
|
||||
.collect::<Result<Vec<_>, _>>()
|
||||
.map_err(|e| format!("Invalid to address: {}", e))?,
|
||||
)
|
||||
.map_err(|e| format!("Failed to create envelope: {}", e))?;
|
||||
|
||||
mailer
|
||||
.send_raw(&envelope_data, &envelope.data)
|
||||
crate::smtp_client::send(self.config.postfix_reinject_port, envelope)
|
||||
.await
|
||||
.map_err(format_smtp_error)?;
|
||||
.map_err(|e| {
|
||||
log::warn!("Failed to re-inject mail: {}", e);
|
||||
e.smtp_response()
|
||||
})?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
@@ -0,0 +1,78 @@
|
||||
use crate::smtp_server::Envelope;
|
||||
use std::net::{IpAddr, SocketAddr};
|
||||
use tokio::io::{AsyncBufReadExt, AsyncWriteExt, BufStream};
|
||||
use tokio::net::TcpSocket;
|
||||
|
||||
const LOCALHOST: IpAddr = IpAddr::V4(std::net::Ipv4Addr::new(127, 0, 0, 1));
|
||||
|
||||
/// Sends an email using an SMTP server at `localhost:<smtp_port>`.
|
||||
pub async fn send(smtp_port: u16, envelope: &Envelope) -> Result<(), crate::error::Error> {
|
||||
let socket = TcpSocket::new_v4()?;
|
||||
|
||||
// Disable Nagle's algorithm.
|
||||
socket.set_nodelay(true)?;
|
||||
|
||||
let stream = socket
|
||||
.connect(SocketAddr::new(LOCALHOST, smtp_port))
|
||||
.await?;
|
||||
|
||||
let mut buf_stream = BufStream::new(stream);
|
||||
let mut response = String::new();
|
||||
|
||||
macro_rules! smtp_write {
|
||||
($command: expr) => {
|
||||
buf_stream.write_all($command).await?;
|
||||
buf_stream.flush().await?;
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! smtp_read {
|
||||
($context:expr, $expected_code:expr) => {
|
||||
buf_stream.read_line(&mut response).await?;
|
||||
if !response.starts_with($expected_code) {
|
||||
return Err(crate::error::Error::MailSend {
|
||||
context: $context.to_string(),
|
||||
raw_smtp_answer: response.clone(),
|
||||
});
|
||||
}
|
||||
response.clear();
|
||||
};
|
||||
}
|
||||
|
||||
macro_rules! smtp_cmd {
|
||||
($command:expr, $context:expr, $expected_code:expr) => {
|
||||
smtp_write!($command);
|
||||
smtp_read!($context, $expected_code);
|
||||
};
|
||||
}
|
||||
|
||||
// Read initial greeting
|
||||
smtp_read!("initial greeting", "220");
|
||||
|
||||
// Greet (Using HELO as we don't want to deal with extended SMTP anyway.)
|
||||
smtp_cmd!(b"HELO localhost\r\n", "HELO", "250");
|
||||
|
||||
// MAIL FROM
|
||||
smtp_cmd!(
|
||||
format!("MAIL FROM:<{}>\r\n", envelope.mail_from).as_bytes(),
|
||||
"MAIL FROM",
|
||||
"250"
|
||||
);
|
||||
|
||||
// RCPT TO
|
||||
for rcpt in &envelope.rcpt_to {
|
||||
smtp_cmd!(
|
||||
format!("RCPT TO:<{}>\r\n", rcpt).as_bytes(),
|
||||
"RCPT TO",
|
||||
"250"
|
||||
);
|
||||
}
|
||||
|
||||
// DATA
|
||||
smtp_cmd!(b"DATA\r\n", "DATA", "354");
|
||||
smtp_write!(&envelope.data);
|
||||
smtp_write!(b".\r\n");
|
||||
smtp_read!("end of DATA", "250");
|
||||
|
||||
Ok(())
|
||||
}
|
||||
@@ -1,5 +1,4 @@
|
||||
use mailparse::MailAddr;
|
||||
use std::error::Error;
|
||||
|
||||
/// Extracts the first email address found in SMTP command or email header.
|
||||
///
|
||||
@@ -27,29 +26,6 @@ pub fn extract_address(input: &str) -> Option<String> {
|
||||
})
|
||||
}
|
||||
|
||||
/// Formats SMTP error to be able to send it back to postfix.
|
||||
pub fn format_smtp_error(error: lettre::transport::smtp::Error) -> String {
|
||||
if let Some(code) = error.status() {
|
||||
format!(
|
||||
"{} {}",
|
||||
code,
|
||||
error
|
||||
.source()
|
||||
.map(ToString::to_string)
|
||||
.unwrap_or("Unknown error".to_string())
|
||||
)
|
||||
} else {
|
||||
// Default to 451, most probably means some internal service error (e.g. milter)
|
||||
format!(
|
||||
"451 {}",
|
||||
error
|
||||
.source()
|
||||
.map(ToString::to_string)
|
||||
.unwrap_or("Unknown error".to_string())
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
|
||||
Reference in New Issue
Block a user