Files
relay/chatmaild/src/chatmaild/tests/mail-data/mailer-daemon.eml
holger krekel c4f0146e16 Reject unencrypted incoming mail (#538)
* draft blocking of incoming non-encrypted mail

* create a new enforceE2EE file in address dirs by default and only accept incoming cleartext file if the enforceE2EE file is missing

* Update cmdeploy/src/cmdeploy/service/filtermail.service.f

Co-authored-by: l <link2xt@testrun.org>

* fix benchmark so they setup encryption

* hack around limitations of aiosmtpd's handliung of RCPTO options

* add tests, and split incoming/outgoing handlers for clarity

* document mailbox directory structure, some streamlining of features/E2EE in intro

* use SMTP response code "523 Encryption Needed"

* filtermail: care for the case that the recipient does not exist


Co-authored-by: missytake <missytake@systemli.org>

* Update chatmaild/src/chatmaild/filtermail.py

Co-authored-by: l <link2xt@testrun.org>

* Update chatmaild/src/chatmaild/filtermail.py

Co-authored-by: l <link2xt@testrun.org>

* remove debug info print

* ensure multipart/report type for mailer-daemon messages

* Allow sending out Autocrypt Setup Messages

---------

Co-authored-by: l <link2xt@testrun.org>
Co-authored-by: missytake <missytake@systemli.org>
2025-04-01 20:52:43 +02:00

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Date: Fri, 8 Jul 1994 09:21:47 -0400
From: Mail Delivery Subsystem <MAILER-DAEMON@example.org>
Subject: Returned mail: User unknown
To: <owner-ups-mib@CS.UTK.EDU>
Auto-Submitted: auto-replied
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
boundary="JAA13167.773673707/CS.UTK.EDU"
--JAA13167.773673707/CS.UTK.EDU
content-type: text/plain; charset=us-ascii
----- The following addresses had delivery problems -----
<arathib@vnet.ibm.com> (unrecoverable error)
<wsnell@sdcc13.ucsd.edu> (unrecoverable error)
--JAA13167.773673707/CS.UTK.EDU
content-type: message/delivery-status
Reporting-MTA: dns; cs.utk.edu
Original-Recipient: rfc822;arathib@vnet.ibm.com
Final-Recipient: rfc822;arathib@vnet.ibm.com
Action: failed
Status: 5.0.0 (permanent failure)
Diagnostic-Code: smtp;
550 'arathib@vnet.IBM.COM' is not a registered gateway user
Remote-MTA: dns; vnet.ibm.com
Original-Recipient: rfc822;johnh@hpnjld.njd.hp.com
Final-Recipient: rfc822;johnh@hpnjld.njd.hp.com
Action: delayed
Status: 4.0.0 (hpnjld.njd.jp.com: host name lookup failure)
Original-Recipient: rfc822;wsnell@sdcc13.ucsd.edu
Final-Recipient: rfc822;wsnell@sdcc13.ucsd.edu
Action: failed
Status: 5.0.0
Diagnostic-Code: smtp; 550 user unknown
Remote-MTA: dns; sdcc13.ucsd.edu
--JAA13167.773673707/CS.UTK.EDU
content-type: message/rfc822
[original message goes here]
--JAA13167.773673707/CS.UTK.EDU--