1283184 - Email sent from yahoo to [e-mail] always ends up as spam

Status: RESOLVED FIXED

(Infrastructure & Operations :: Infrastructure: Mail, task)

Description

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

Attachment: Headers of failing email

It turns out mail sent to [e-mail] is forwarded to mailman, which then sends back email to the list recipients. Yahoo mail always ends up as spam because dmarc/dkim is used and the headers don't check out when sending back to gmail.

Is there some way this can be fixed? I've attached the headers, sender is scrubbed.

Comment 1

[Ed Lim [:limed]]

Well there is an option on the mailing list, its under privacy options > sender filters > dmarc_moderation_option. You would want to set this to "Munge from"[1], note that doing this does cause the email to be non rfc compliant[2] although only for domains that have a dmarc policy.

This is a setting that can be enabled by the list administrator, so I'm adding them to this bug to decide if thats the route that they want to go.


[1]: https://wiki.list.org/DEV/DMARC
[2]: https://wiki.list.org/DOC/What%20can%20I%20do%20about%20members%20being%20unsubscribed%20by%20bounces%20of%20Yahoo%20user's%20posts%20for%20DMARC%20policy%20reasons%3F

Comment 2

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

(In reply to Ed Lim [:limed] from comment #1)
> Well there is an option on the mailing list, its under privacy options >
> sender filters > dmarc_moderation_option. You would want to set this to
> "Munge from"[1], note that doing this does cause the email to be non rfc
> compliant[2] although only for domains that have a dmarc policy.
Wouldn't a non-compliant email be something similarly caught by Google's spam filters on the way back to the list recipient's accounts?

Comment 3

[Jorge Villalobos [:jorgev] (he/him)]

I'm open to giving that a try, but I'd like to understand the implications of changing that setting.

Comment 4

[Ed Lim [:limed]]

I've set this to munge from already, so should be good here