Remote host said: 550 5.1.1 recipient rejected is in RBL [RCPT_TO]

Discussion in 'Mail Server Support' started by popowich, Nov 15, 2013.

  1. popowich

    popowich EQ Forum Admin Staff Member

    Aug 12, 2008
    Likes Received:

    Are you a Yahoo user that received this bounce message after sending an email?

    Remote host said: 550 5.1.1 recipient rejected is in RBL [RCPT_TO]

    The email was rejected by the recipients mail server becuase this Yahoo outgoing IP address is listed on some blacklists.

    Unfortunately, this happens when large number of users share the same outgoing IP address(es)

    Some workarounds include the recipients mail server operator whitelisting Yahoo IP addresses, the recipient mail server choosing not to use the SORBS and/or Spamcop RBL's, or the sender choosing to use a different outgoing mails server such as their ISP smtp relay for sending email to that recipient until the problem is fixed.

    If you are tired of Yahoo being blacklisted we recommend signing up to use the LuxSci SMTP outgoing mail service.

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