[alsa-devel] DMARC & gmail & cirrus.com

[Jaroslav Kysela]

Hi all,

	today, all gmail users were unsubscribed from the mailing list, because we 
have users who sends e-mails from domains with the DMARC policy reject (like 
cirrus.com). The mailman counts those bounces and unsubscribe users who do not 
receive those e-mails. The nice explanation is here:

https://www.linuxchix.org/content/mailing-list-changes

	I can enable the "Replace the From: header address" in the mailman config to 
"Munge From" like in the above example, but it will mean that From: will be 
altered (see the explanation).

	Another option is to disable the bounce check in mailman, but it will cause 
that the "dead" subscribers are not detected anymore.

	Any opinions on this?

					Jaroslav

SMTP error:

(host alt1.gmail-smtp-in.l.google.com[173.194.73.26] said: 550-5.7.26 
Unauthenticated email from cirrus.com is not accepted due to domain's 
550-5.7.26 DMARC policy. Please contact the administrator of cirrus.com domain 
550-5.7.26 if this was a legitimate mail. Please visit 550-5.7.26 
https://support.google.com/mail/answer/2451690 to learn about the 450 4.7.26 
DMARC initiative. m14si10079981ljg.84 - gsmtp (in reply to end of DATA command))

DMARC settings for cirrus.com:

v=DMARC1; p=reject; 
fo=1;rua=mailto:dmarc_rua at emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf at emaildefense.proofpoint.com

-- 
Jaroslav Kysela <perex at perex.cz>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.