Looking for Yahoo eMail contact

Tue Jan 12 09:46:04 UTC 2016

Yes this one intrigued me as well, especially as one of the suggestions provided:

https://help.yahoo.com/kb/postmaster/review-practices-senders-sln3435.html

Which states:

If your messages are being blocked, look closely at any SMTP error codes our mail servers are returning and make sure you're addressing the problem:
[…]
Retry 4xx messages - This is a temporary error. (sic)
[…]

Regards,

Marc

> On 11 Jan 2016, at 21:27, Valdis.Kletnieks at vt.edu wrote:
> 
> On Mon, 11 Jan 2016 12:25:17 +0000, Marc Storck said:
>> I'm looking for a Yahoo email administrator who could contact me offlist.
> 
>> Error: "421 4.7.1 [TS03] All messages from x.x.x.x permanently deferred"
> 
> If you find one, tell them to go look up the difference between 4xx and 5xx
> return codes. :)

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