Bug 257249 - Invalid DKIM-Signature in response from freebsd-ports@FreeBSD.org mailing list
Summary: Invalid DKIM-Signature in response from freebsd-ports@FreeBSD.org mailing list
Status: Closed FIXED
Alias: None
Product: Services
Classification: Unclassified
Component: Mailing Lists (show other bugs)
Version: unspecified
Hardware: Any Any
: --- Affects Some People
Assignee: postmaster
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-07-18 13:13 UTC by Dominik Lisiak
Modified: 2022-07-14 03:01 UTC (History)
1 user (show)

See Also:

Attachments
Invalid Response from FreeBSD.org as .eml (6.64 KB, message/rfc822)
2021-07-18 13:13 UTC, Dominik Lisiak 		no flags Details
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Description Dominik Lisiak 2021-07-18 13:13:43 UTC 
Created attachment 226530 [details]
Invalid Response from FreeBSD.org as .eml

I've recently subscribed to freebsd-ports@FreeBSD.org mailing list. After sending email to this address I received a response with modified "From" header, but with DKIM-Signature header still copied from the original SMTP server (mail.bemsoft.pl). This causes the mail to be categorized as spam.

The mailing list server should either remove the original DKIM-Signature header or better replace it with new one for FreeBSD.org domain.

I've attached the invalid response.
Comment 1 Philip Paeps freebsd_committer freebsd_triage 2022-07-14 03:01:21 UTC 
This is fixed.

Since we moved to mlmmj, we don't modify the message (and thus don't break the DKIM signature) for the vast majority of posts to the mailing lists.  When we have to munge From, for domains handicapped by DMARC, we add our own freebsd.org DKIM signature, which does validate.