notify: smtp: add Auto-Submitted
header to email body
`Auto-Submitted` is defined in the rfc 5436 [1] and describes how an automatic response (f.e. ooo replies, etc.) should behave on the emails. When using `Auto-Submitted: auto-generated` (or any value other than `none`) automatic replies won't be triggered. [1]: https://www.rfc-editor.org/rfc/rfc3834.html Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
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@ -1,5 +1,6 @@
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use std::time::Duration;
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use lettre::message::header::{HeaderName, HeaderValue};
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use lettre::message::{Mailbox, MultiPart, SinglePart};
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use lettre::transport::smtp::client::{Tls, TlsParameters};
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use lettre::{message::header::ContentType, Message, SmtpTransport, Transport};
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@ -199,7 +200,7 @@ impl Endpoint for SmtpEndpoint {
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email_builder = email_builder.to(parse_address(&recipient)?);
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}
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let email = match ¬ification.content {
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let mut email = match ¬ification.content {
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Content::Template {
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title_template,
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body_template,
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@ -232,7 +233,7 @@ impl Endpoint for SmtpEndpoint {
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}
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#[cfg(feature = "mail-forwarder")]
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Content::ForwardedMail { ref raw, title, .. } => {
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use lettre::message::header::{ContentTransferEncoding, HeaderName, HeaderValue};
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use lettre::message::header::ContentTransferEncoding;
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use lettre::message::Body;
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let parsed_message = mail_parser::Message::parse(raw)
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@ -325,6 +326,15 @@ impl Endpoint for SmtpEndpoint {
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}
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};
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// `Auto-Submitted` is defined in RFC 5436 and describes how
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// an automatic response (f.e. ooo replies, etc.) should behave on the
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// emails. When using `Auto-Submitted: auto-generated` (or any value
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// other than `none`) automatic replies won't be triggered.
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email.headers_mut().insert_raw(HeaderValue::new(
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HeaderName::new_from_ascii_str("Auto-Submitted"),
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"auto-generated;".into(),
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));
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transport
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.send(&email)
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.map_err(|err| Error::NotifyFailed(self.name().into(), err.into()))?;
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