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

  • 33 Users Found This Useful
Was this answer helpful?

Related Articles

IP Address blocked by Autoban

Autoban is a security feature provided by the mail server for Windows-based hosting.The purpose...

Email Configuration Recommendations

There are two protocols that is frequently in use to retrieve email contents, which is POP3 and...

SMTP error codes for Yahoo Mail

https://help.yahoo.com/kb/smtp-error-codes-sln23996.html

Bounced Message "Sender verify failed"

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

Migrating email contents using IMAP protocol

Email contents from old server cannot be migrated to new server especially if both servers are...