This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

emails keep bouncing back

more options

emails keep bouncing back. Use to work fine. Now receving the following msg:

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:

 asegman@conrock.net.au
   host conrock-net-au.mail.protection.outlook.com [213.199.154.23]
   SMTP error from remote mail server after RCPT TO:<asegman@conrock.net.au>:
   550 5.7.1 Service unavailable; Client host [27.121.64.106] blocked using Spamhaus; To request removal from this list see http://www.spamhaus.org/lookup.lasso
emails keep bouncing back. Use to work fine. Now receving the following msg: This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: asegman@conrock.net.au host conrock-net-au.mail.protection.outlook.com [213.199.154.23] SMTP error from remote mail server after RCPT TO:<asegman@conrock.net.au>: 550 5.7.1 Service unavailable; Client host [27.121.64.106] blocked using Spamhaus; To request removal from this list see http://www.spamhaus.org/lookup.lasso

All Replies (1)

more options

You or your provider are on a spam blacklist . The error message clearly states that. You need to work with your provider to clear that up.