docs: remove outdated comment that says MDNs are unencrypted

This commit is contained in:
link2xt
2025-07-06 22:06:54 +00:00
committed by l
parent 94e75cb3b8
commit d9b361f066

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@@ -1712,16 +1712,6 @@ impl MimeFactory {
fn render_mdn(&mut self) -> Result<MimePart<'static>> {
// RFC 6522, this also requires the `report-type` parameter which is equal
// to the MIME subtype of the second body part of the multipart/report
//
// currently, we do not send MDNs encrypted:
// - in a multi-device-setup that is not set up properly, MDNs would disturb the communication as they
// are send automatically which may lead to spreading outdated Autocrypt headers.
// - they do not carry any information but the Message-ID
// - this save some KB
// - in older versions, we did not encrypt messages to ourself when they to to SMTP - however, if these messages
// are forwarded for any reasons (eg. gmail always forwards to IMAP), we have no chance to decrypt them;
// this issue is fixed with 0.9.4
let Loaded::Mdn {
rfc724_mid,
additional_msg_ids,