[Mailman-Users] Yahoo rejects

Grant Taylor gtaylor at tnetconsulting.net
Fri Mar 16 21:54:50 EDT 2018

On 03/16/2018 01:57 PM, Jim Dory wrote:
> ---------- Forwarded message ----------
> From: MAILER-DAEMON at domain2.example
> To: nome-announce-bounces at domain1.example
> Cc:
> Bcc:
> Date:
> Subject: Delivery failure
> Message from domain2.example.
> Unable to deliver message to the following address(es).
> <redacted1 at domain2.example <redacted2 at domain2.example>>:
> This user doesn't have a domain2.example account (redacted1 at domain2.example
> <redacted2 at domain2.example>) [0]

Okay.  That seems like a generic "non existent user" type response.

> (I've snipped the address)


> I got this delivery failure on perhaps 30 yahoo users over the last couple
> days, and it is repeating. When I write to any of the users personally,
> they respond that - yes, they are still there.

Okay.  So Yahoo is returning 5xy errors that make it seem like the 
recipient address is invalid for known good recipient addresses.

It sounds like some sort of filtering is either mis-behaving or poorly 
configured to me.

Has there been any noise about Yahoo on mailop about this new behavior?

Grant. . . .
unix || die

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