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

[Takashi Iwai]

On Mon, 17 Feb 2020 09:46:22 +0100,
Jaroslav Kysela wrote:
> 
> 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?

If the number of such dead subscribers isn't too rapidly growing, the
manual bounce check and unsubscribing would work?


Takashi

> 
> 					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.
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