Mail IP Blacklist by Yahoo

If your email is blaklisted by Yahoo, users will receive the following bounced back message.

Bounced Back Message:
421 4.7.0 [TS01] Messages from <0.0.0.0> temporarily deferred due to user complaints -
<0.0.0.0> ; see http://postmaster.yahoo.com/421-ts01.html

First find out the cause and resolved the matter.
Then visit the link below to request for removal from blacklist by Yahoo.

http://help.yahoo.com/l/us/yahoo/mail/postmaster/bulkv2.html

  • 32 Users Found This Useful
Was this answer helpful?

Related Articles

Bounced Message "Sender verify failed"

The bounced back message below is received by the sender. "Sender verify failed"To prevent...

Why Mail Sent to Mailing List Members is Rejected

Mailing list is a feature to allow users to forward mails to multiple recipients within the same...

Email Rejected by DNSBL

DNSBL is a blocking list that keeps a record of specific IP address/network with spamming...

Why Email Falls into Junk/Spam Category

Every mail server may apply different spam filtering mechanism to filter out junk mails from...

Disable Junk folder in MS Outlook

Some emails will fall in Spam folder due to spam-trigger words detected or some other criteria....