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https://github.com/dani-garcia/vaultwarden.git
synced 2024-12-22 10:59:00 +00:00
Add support for sendmail as a mail transport
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@ -373,7 +373,7 @@
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# ROCKET_WORKERS=10
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# ROCKET_TLS={certs="/path/to/certs.pem",key="/path/to/key.pem"}
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## Mail specific settings, set SMTP_HOST and SMTP_FROM to enable the mail service.
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## Mail specific settings, set SMTP_FROM and either SMTP_HOST or USE_SENDMAIL to enable the mail service.
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## To make sure the email links are pointing to the correct host, set the DOMAIN variable.
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## Note: if SMTP_USERNAME is specified, SMTP_PASSWORD is mandatory
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# SMTP_HOST=smtp.domain.tld
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@ -385,6 +385,11 @@
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# SMTP_PASSWORD=password
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# SMTP_TIMEOUT=15
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# Whether to send mail via the `sendmail` command
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# USE_SENDMAIL=false
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# Which sendmail command to use. The one found in the $PATH is used if not specified.
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# SENDMAIL_COMMAND="/path/to/sendmail"
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## Defaults for SSL is "Plain" and "Login" and nothing for Non-SSL connections.
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## Possible values: ["Plain", "Login", "Xoauth2"].
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## Multiple options need to be separated by a comma ','.
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@ -114,7 +114,7 @@ webauthn-rs = "0.3.2"
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url = "2.3.1"
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# Email librariese-Base, Update crates and small change.
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lettre = { version = "0.10.1", features = ["smtp-transport", "builder", "serde", "tokio1-native-tls", "hostname", "tracing", "tokio1"], default-features = false }
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lettre = { version = "0.10.1", features = ["smtp-transport", "sendmail-transport", "builder", "serde", "tokio1-native-tls", "hostname", "tracing", "tokio1"], default-features = false }
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percent-encoding = "2.2.0" # URL encoding library used for URL's in the emails
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email_address = "0.2.4"
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@ -614,6 +614,10 @@ make_config! {
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smtp: _enable_smtp {
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/// Enabled
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_enable_smtp: bool, true, def, true;
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/// Use Sendmail |> Whether to send mail via the `sendmail` command
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use_sendmail: bool, true, def, false;
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/// Sendmail Command |> Which sendmail command to use. The one found in the $PATH is used if not specified.
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sendmail_command: String, true, option;
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/// Host
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smtp_host: String, true, option;
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/// DEPRECATED smtp_ssl |> DEPRECATED - Please use SMTP_SECURITY
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@ -653,7 +657,7 @@ make_config! {
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/// Email 2FA Settings
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email_2fa: _enable_email_2fa {
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/// Enabled |> Disabling will prevent users from setting up new email 2FA and using existing email 2FA configured
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_enable_email_2fa: bool, true, auto, |c| c._enable_smtp && c.smtp_host.is_some();
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_enable_email_2fa: bool, true, auto, |c| c._enable_smtp && (c.smtp_host.is_some() || c.use_sendmail);
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/// Email token size |> Number of digits in an email 2FA token (min: 6, max: 255). Note that the Bitwarden clients are hardcoded to mention 6 digit codes regardless of this setting.
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email_token_size: u8, true, def, 6;
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/// Token expiration time |> Maximum time in seconds a token is valid. The time the user has to open email client and copy token.
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@ -744,27 +748,59 @@ fn validate_config(cfg: &ConfigItems) -> Result<(), Error> {
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),
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}
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if cfg.smtp_host.is_some() == cfg.smtp_from.is_empty() {
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err!("Both `SMTP_HOST` and `SMTP_FROM` need to be set for email support")
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if cfg.use_sendmail {
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if let Some(ref command) = cfg.sendmail_command {
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let path = std::path::Path::new(&command);
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if !path.is_absolute() {
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err!(format!("path to sendmail command `{path:?}` is not absolute"));
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}
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match path.metadata() {
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Err(err) if err.kind() == std::io::ErrorKind::NotFound => {
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err!(format!("sendmail command not found at `{path:?}`"))
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}
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Err(err) => {
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err!(format!("failed to access sendmail command at `{path:?}`: {err}"))
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}
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Ok(metadata) => {
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if metadata.is_dir() {
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err!(format!("sendmail command at `{path:?}` isn't a directory"));
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}
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#[cfg(unix)]
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{
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use std::os::unix::fs::PermissionsExt;
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if !metadata.permissions().mode() & 0o111 != 0 {
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err!(format!("sendmail command at `{path:?}` isn't executable"));
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}
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}
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}
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}
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}
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} else {
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if cfg.smtp_host.is_some() == cfg.smtp_from.is_empty() {
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err!("Both `SMTP_HOST` and `SMTP_FROM` need to be set for email support without `USE_SENDMAIL`")
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}
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if cfg.smtp_username.is_some() != cfg.smtp_password.is_some() {
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err!("Both `SMTP_USERNAME` and `SMTP_PASSWORD` need to be set to enable email authentication without `USE_SENDMAIL`")
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}
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}
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if cfg.smtp_host.is_some() && !cfg.smtp_from.contains('@') {
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if (cfg.smtp_host.is_some() || cfg.use_sendmail) && !cfg.smtp_from.contains('@') {
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err!("SMTP_FROM does not contain a mandatory @ sign")
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}
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if cfg.smtp_username.is_some() != cfg.smtp_password.is_some() {
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err!("Both `SMTP_USERNAME` and `SMTP_PASSWORD` need to be set to enable email authentication")
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}
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if cfg._enable_email_2fa && (!cfg._enable_smtp || cfg.smtp_host.is_none()) {
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err!("To enable email 2FA, SMTP must be configured")
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}
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if cfg._enable_email_2fa && cfg.email_token_size < 6 {
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err!("`EMAIL_TOKEN_SIZE` has a minimum size of 6")
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}
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}
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if cfg._enable_email_2fa && !(cfg.smtp_host.is_some() || cfg.use_sendmail) {
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err!("To enable email 2FA, a mail transport must be configured")
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}
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// Check if the icon blacklist regex is valid
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if let Some(ref r) = cfg.icon_blacklist_regex {
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let validate_regex = regex::Regex::new(r);
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@ -1045,7 +1081,7 @@ impl Config {
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}
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pub fn mail_enabled(&self) -> bool {
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let inner = &self.inner.read().unwrap().config;
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inner._enable_smtp && inner.smtp_host.is_some()
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inner._enable_smtp && (inner.smtp_host.is_some() || inner.use_sendmail)
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}
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pub fn get_duo_akey(&self) -> String {
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95
src/mail.rs
95
src/mail.rs
@ -8,7 +8,7 @@ use lettre::{
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transport::smtp::authentication::{Credentials, Mechanism as SmtpAuthMechanism},
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transport::smtp::client::{Tls, TlsParameters},
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transport::smtp::extension::ClientId,
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Address, AsyncSmtpTransport, AsyncTransport, Tokio1Executor,
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Address, AsyncSendmailTransport, AsyncSmtpTransport, AsyncTransport, Tokio1Executor,
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};
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use crate::{
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@ -21,7 +21,15 @@ use crate::{
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CONFIG,
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};
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fn mailer() -> AsyncSmtpTransport<Tokio1Executor> {
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fn sendmail_transport() -> AsyncSendmailTransport<Tokio1Executor> {
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if let Some(command) = CONFIG.sendmail_command() {
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AsyncSendmailTransport::new_with_command(command)
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} else {
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AsyncSendmailTransport::new()
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}
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}
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fn smtp_transport() -> AsyncSmtpTransport<Tokio1Executor> {
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use std::time::Duration;
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let host = CONFIG.smtp_host().unwrap();
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@ -509,6 +517,58 @@ pub async fn send_admin_reset_password(address: &str, user_name: &str, org_name:
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send_email(address, &subject, body_html, body_text).await
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}
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async fn send_with_selected_transport(email: Message) -> EmptyResult {
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if CONFIG.use_sendmail() {
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match sendmail_transport().send(email).await {
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Ok(_) => Ok(()),
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// Match some common errors and make them more user friendly
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Err(e) => {
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if e.is_client() {
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debug!("Sendmail client error: {:#?}", e);
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err!(format!("Sendmail client error: {e}"));
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} else if e.is_response() {
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debug!("Sendmail response error: {:#?}", e);
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err!(format!("Sendmail response error: {e}"));
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} else {
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debug!("Sendmail error: {:#?}", e);
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err!(format!("Sendmail error: {e}"));
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}
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}
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}
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} else {
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match smtp_transport().send(email).await {
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Ok(_) => Ok(()),
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// Match some common errors and make them more user friendly
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Err(e) => {
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if e.is_client() {
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debug!("SMTP client error: {:#?}", e);
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err!(format!("SMTP client error: {e}"));
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} else if e.is_transient() {
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debug!("SMTP 4xx error: {:#?}", e);
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err!(format!("SMTP 4xx error: {e}"));
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} else if e.is_permanent() {
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debug!("SMTP 5xx error: {:#?}", e);
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let mut msg = e.to_string();
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// Add a special check for 535 to add a more descriptive message
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if msg.contains("(535)") {
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msg = format!("{msg} - Authentication credentials invalid");
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}
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err!(format!("SMTP 5xx error: {msg}"));
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} else if e.is_timeout() {
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debug!("SMTP timeout error: {:#?}", e);
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err!(format!("SMTP timeout error: {e}"));
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} else if e.is_tls() {
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debug!("SMTP encryption error: {:#?}", e);
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err!(format!("SMTP encryption error: {e}"));
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} else {
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debug!("SMTP error: {:#?}", e);
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err!(format!("SMTP error: {e}"));
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}
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}
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}
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}
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}
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async fn send_email(address: &str, subject: &str, body_html: String, body_text: String) -> EmptyResult {
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let smtp_from = &CONFIG.smtp_from();
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@ -538,34 +598,5 @@ async fn send_email(address: &str, subject: &str, body_html: String, body_text:
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.subject(subject)
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.multipart(body)?;
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match mailer().send(email).await {
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Ok(_) => Ok(()),
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// Match some common errors and make them more user friendly
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Err(e) => {
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if e.is_client() {
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debug!("SMTP Client error: {:#?}", e);
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err!(format!("SMTP Client error: {e}"));
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} else if e.is_transient() {
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debug!("SMTP 4xx error: {:#?}", e);
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err!(format!("SMTP 4xx error: {e}"));
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} else if e.is_permanent() {
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debug!("SMTP 5xx error: {:#?}", e);
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let mut msg = e.to_string();
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// Add a special check for 535 to add a more descriptive message
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if msg.contains("(535)") {
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msg = format!("{msg} - Authentication credentials invalid");
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}
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err!(format!("SMTP 5xx error: {msg}"));
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} else if e.is_timeout() {
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debug!("SMTP timeout error: {:#?}", e);
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err!(format!("SMTP timeout error: {e}"));
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} else if e.is_tls() {
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debug!("SMTP Encryption error: {:#?}", e);
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err!(format!("SMTP Encryption error: {e}"));
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} else {
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debug!("SMTP {:#?}", e);
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err!(format!("SMTP {e}"));
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}
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}
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}
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send_with_selected_transport(email).await
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}
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