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http://bugs.exim.org/show_bug.cgi?id=1559
Summary: Diagnostic-Code: Field for EXPERIMENTAL-DSN wrong
Product: Exim
Version: 4.84
Platform: Other
OS/Version: Linux
Status: NEW
Severity: bug
Priority: medium
Component: Delivery in general
AssignedTo: nigel@???
ReportedBy: wbreyha@???
CC: exim-dev@???
Created an attachment (id=771)
--> (
http://bugs.exim.org/attachment.cgi?id=771)
fix for Diagnostic-Code field of EXPERIMENTAL_DSN
This bug and patch is for 4.85_RC2 only.
EXPERIMENTAL_DSN had two bugs in 4.84. The first is already fixed in 4.85_RCx.
addr->host_used is set correctly now (outside the EXPERIMENTAL_DSN code).
Thanks Jeremy!
The second flaw was not visible until host_used was available. The
Diagnostic-Code field of the machine readable part of a DSN was wrong.
It looked like:
Remote-MTA: dns; mail.example.tld
Diagnostic-Code: smtp; 0
This patch fixes this. Instead of using basic_errno, which is also not
available at this point of deliver.c, I use addr->message which contains the
complete and sanitized error message from the remote host.
I added a function to make some specific checks, strip the leading information
Exim added by searching for the first ": " and print the SMTP message as
required by RFC 3461:9.2.
I tested it for single- and multiline 5xx errorcodes. As far as I can tell it
should work for 4xx as well.
Now it looks like (multiline example):
Remote-MTA: dns; mail.example.tld
Diagnostic-Code: smtp; 550-unknown user/Adresse existiert nicht
<unknown@???>
550 non existent
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