Hi Mathieu,
try the community forums (https://forums.yahoo.net/t5/Mail/ct-p/Mail).
There are yahoo employees there, and while you might have to go through
2-3 copy & paste-replies that has nothing to do with the issue,
eventually someone will make sure it's escalated to someone who can
investigate the issue.
On 2018-10-18 09:20, Mathieu Marnat wrote:
Hi,
After several years helping our customers deliver their emails I never
had to really worry about Yahoo. If the campaigns were awful mails
would not get delivered but other than that it was not a concern. A
few days ago one pool of IPs started getting "421 4.7.0 [TSS04]
Messages from X.X.X.X temporarily deferred due to user complaints" for
no apparent reason. Moreover, only some IPs inside the pool got this
message and some other did not. I can not get these IPs to get back to
"normal".
So this was the first time I used Yahoo's contact form. And I have
used it several times since. They sometimes answer back to ask you to
write the same thing you wrote in the form and then it always ends
with the same pre-typed response. You can not get any bit of
information or help from them. So I was just wondering : did someone
ever manage to get a helpful answer ? Is it even worth writing to them ?
Thank you for your help !
Mathieu.
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--
Best regards
Jesper Sörtoft
Deliverability Specialist
Stormgatan 11, 211 20 Malmö
www.apsis.se
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