Home » Kerio User Forums » Kerio Connect » Yahoo just started delaying / blocking our domain email
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McIrish

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I got word from a few people at my company that email they are sending to Yahoo addresses is being rejected.
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<blablabla<_at_>yahoo.com> (mta5.am0.yahoodns.net: 421 4.7.0 [TSS04] Messages from xx.xxx.xxx.xxx temporarily deferred due to user complaints - 4.16.55.1 ; see https://help.yahoo.com/kb/postmaster/SLN3434.html)


This is just a temporary error. The server will continue to attempt to deliver the message. If the message cannot be delivered in the defined time limit you will be informed again.
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This just began in the last couple days. Anyone see anything like that? I checked out our server on mxtoolbax and it shows fine other than SMTP banner check and TLS. Seems like they flagged our mail server as a spam server. They don't give any options to contact them to get it resolved. Anyone else see anything odd with yahoo lately?
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McIrish

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Nevermind..
One of our accounts was hacked and sent out the spam
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