Reach out to Google about @yahoo.com emails not reaching gmail inboxes (when sent to mailing lists)
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	Peachey88
	Sep 28 2016, 12:41 AM

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I've noticed a number of emails sent from "@yahoo.com" accounts not reaching my gmail account once being processed by mailman (and archived), We should probably outreach to Google (if we still have contacts there( about this.

Most recent example is Paladox's emails to wikitech (Attached).

I've also had a search for @yahoo.com in my mailing list filter/tag in my inbox and found several other examples where they have reached Mailman but not my inbox (visible due to other users quoting and replying to them)

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Mentioned In: T168467: Improve lists.wikimedia.org DMARC compatibility
Mentioned Here: T168467: Improve lists.wikimedia.org DMARC compatibility
T66795: Email server's DMARC config prevents users from sending emails via Special:EmailUser
T66818: Mitigate strict DMARC policy on the mailing lists

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Peachey88 created this task.Sep 28 2016, 12:41 AM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptSep 28 2016, 12:41 AM

elukey triaged this task as Low priority.Oct 19 2016, 12:39 PM

This is most likely related to Yahoo's DMARC policy, cf. T66818.

Paladox subscribed.Nov 9 2016, 10:00 PM

In T146841#2728793, @faidon wrote:

This is most likely related to Yahoo's DMARC policy, cf. T66818.

T66795 is fixed now hence wondering if this very task is still on the list?

• MZMcBride subscribed.Dec 18 2016, 10:01 PM

@Paladox you recently said that yahoo unblocked us and you are receiving mail again?

Yep but this task is about emails not reaching gmail users from a yahoo email address if you use the mailing list.

Instead of reaching Google about this issue, it should first be tried to implement the DMARC-workaround in Mailman 2.1.18 as described in T168467.

Dzahn added a subscriber: herron.Jul 18 2017, 9:01 PM

jeremyb subscribed.Aug 24 2017, 7:24 PM

@Seb35 @Peachey88 @herron since T168467 is resolved meanwhile, does this mean this ticket can be closed as well?

Dzahn mentioned this in T168467: Improve lists.wikimedia.org DMARC compatibility.Nov 2 2017, 11:48 AM

In T146841#3729163, @Dzahn wrote:

@Seb35 @Peachey88 @herron since T168467 is resolved meanwhile, does this mean this ticket can be closed as well?

Could anyone answer Dzahn's question please? ^^

Dzahn added a project: Mail.May 11 2018, 10:56 PM

In T146841#3729163, @Dzahn wrote:

@Seb35 @Peachey88 @herron since T168467 is resolved meanwhile, does this mean this ticket can be closed as well?

I subscribed with a private @gmail.com account to wikitech-l@ and did not receive https://lists.wikimedia.org/pipermail/wikitech-l/2018-June/090265.html so this still seems to be a problem.

For wikitech-l the DMARC moderation policy is accept, which is known to cause issues with ISPs using strict DMARC policy (such as yahoo)

Changing that to "Munge From" would address this by rewriting sender addresses with strict DMARC policies to the address of the list, and adding a reply-to header.

@herron: Thanks! I boldly changed that setting to "Munge From" on https://lists.wikimedia.org/mailman/admin/wikitech-l/privacy/sender

Might mean that this task is resolved?

In T146841#4378385, @Aklapper wrote:

@herron: Thanks! I boldly changed that setting to "Munge From" on https://lists.wikimedia.org/mailman/admin/wikitech-l/privacy/sender

Might mean that this task is resolved?

That should do the trick! I'll transition to resolved now, but of course we can re-open if needed.

	F23076078: Screen Shot 2018-06-29 at 12.39.47 PM.png
	Jun 29 2018, 4:43 PM

Reach out to Google about @yahoo.com emails not reaching gmail inboxes (when sent to mailing lists)Closed, ResolvedPublicActions

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Reach out to Google about @yahoo.com emails not reaching gmail inboxes (when sent to mailing lists)
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