Cox Postmaster Error Codes
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Added by Cox Communications, last edited by Admin Accou on Sep 01, 2016 (view change) Comment: Error Code Details The following is a list of the possible error codes that a sender may encounter. A brief description is provided along with
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instructions on how to address the issue. Error Code Description What To Do CXBL The sending minnie cox postmaster IP address has been blocked by Cox due to exhibiting spam-like behavior Submit a request using the contact form here. The request will
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be reviewed by Cox. Cox has sole discretion whether to unblock the sending IP address. CDRBL The sending IP address has been temporarily blocked by Cox due to exhibiting behavior characteristic of spam The duration of the block may cox.net blacklist check vary depending on reputation and other factors, but will not exceed 24 hours. Inspect message traffic for potential spam, and retry message delivery. IPBL0001 The sending IP is listed in the Spamhaus Zen DNSBL. Click here for more information and removal instructions from Spamhaus. Spamhaus has sole discretion whether to remove the sending IP from the DNSBL. IPBL0010 The sending IP is listed in the Return Path DNSBL Click here for more information and removal instructions from cox error cnf9 Return Path. Return Path has sole discretion whether to remove the sending IP from the DNSBL. IPBL0100 The sending IP is listed in the Invaluement ivmSIP DNSBL Click here for more information and removal instructions from ivmSIP. ivmSIP has sole discretion whether to remove the sending IP from the DNSBL. IPBL0011 The sending IP is in the Spamhaus Zen and Return Path DNSBLs See the "What To Do" instructions above for Spamhaus and Return Path IPBL0101 The sending IP is in the Spamhaus Zen and Invaluement ivmSIP DNSBLs See the "What To Do" instructions above for Spamhaus and ivmSIP IPBL0110 The sending IP is in the Return Path and Invaluement ivmSIP DNSBLs See the "What To Do" instructions above for Return Path and ivmSIP IPBL0111 The sending IP is in the Spamhaus Zen, Return Path and Invaluement ivmSIP DNSBLs See the "What To Do" instructions above for Spamhaus Zen, Return Path and ivmSIP IPBL1000 The Sending IP is listed in the Cloudmark CSI DNSBL Click here for more information and removal instructions from Cloudmark CSI. Cloudmark has sole discretion whether to remove the sending IP from the DNSBL. IPBL1001 The sending IP is listed in the Cloudmark CSI and Spamhaus Zen DNSBLs. See the "What To Do" instructions above for Cloudmark CSI and Spamhaus Zen. IPBL1010 The sending IP is listed in the Cloudmark CSI and Return Path DNSBLs. See th
Alertscheckbox YTcheckbox Manage Email Alerts Cox Communications Email Blocked Error Codes353 « Forum HomePages:1 20 20LiquidLayer private msg quote post Address this userplus 1 0 Cox Communications
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Error Code Details The following is a list of the possible error mail system error returned mail cox codes that a sender may encounter. A brief description is provided along with instructions on how to address the
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issue. http://postmaster.cox.net/confluence/display/postmaster/Error+Codes Why am I being blocked? The error message that was displayed at the time of the block contains information regarding the reason. . More details about the various error messages http://postmaster.cox.net/confluence/display/postmaster/Error+Codes can be found in the Error Codes section. Can I get unblocked? This depends on the reason for the block. The details of the error you encountered are found in the Error Codes section, which contains information on how to request a block be lifted. Can I be whitelisted? Protection of our customers and network is paramount. Therefore, we do not whitelist. Does Cox http://community.hostcheetah.com/topic/353/cox-communications-email-blocked-error-codes/ offer a Feedback Loop? Yes. See the Feedback Loop section here. What are Cox's sending limits? Cox currently allows up to 5 simultaneous connections per sending IP address, and up to 100 messages per connection. However, regardless of these limits, Cox may throttle your sending ability based on your sender reputation. Cox's sending limits and policies are subject to change at any time. Cox will update this website when changes are made. How do I report abuse? Please find instructions on how to report abuse here. Error Code Description What To Do CXBL The sending IP address has been blocked by Cox due to exhibiting spam-like behavior Submit a request using the contact form here. The request will be reviewed by Cox. Cox has sole discretion whether to unblock the sending IP address. CDRBL The sending IP address has been temporarily blocked by Cox due to exhibiting behavior characteristic of spam The duration of the block may vary depending on reputation and other factors, but will not exceed 24 hours. Inspect message traffic for potential spam, and retry message delivery. IPBL0001 The sending IP is listed in the Spamha
forum guidelines email blocked Forum Home TV Forum Internet Forum Phone Forum Apps Forum email blocked Activity: 5 Replies | 1 Subscribers This question is still unresolved Posted by Clint Wasser 5 Nov http://forums.cox.com/forum_home/internet_forum/f/5/t/2890.aspx 2013 12:36 PM Get this RSS feed In addition to my personal Cox email http://ipblacklistremoval.com/what-to-do-about-blocked-email/ address, I also have a business email address (not through Cox), clint@wassercpa.com. Beginning last Friday, any emails I send using this address to any cox email address (including my own) is blocked. It refers me to a website, which says it (ip address174.127.108.151) hasbeen blocked due to spam like behavior. I've completed the contact form about 3 times now error code since last Friday trying to have it unblocked with no response from them. I used mxtoolbox.com to check the various black lists and no one else is blocking this ip address. I run antivirus software on a regular basis on my pc's and have no evidence anyone is hacking my account or ip address. How do I get Cox to unblock my ip address? Reply All Replies 0 Kudos Posted by Trikein 5 Nov cox postmaster error 2013 4:31 PM The IP doesn't seem to be on any Blacklist I can find. What was the bounce back message and website your directed to? Who is the message from? Reply 0 Kudos Posted by DerrickW 5 Nov 2013 4:41 PM HI Clint Wasser, I checked the IP against blacklists that are out there and it is not showing up. When you try to send e-mail what is it telling you? Do you get a bounceback email or does it not go through at all. If you could screenshot or copy and paste the error and post it we can see exactly what's going on. Derrick W.-Cox Support Forums Moderator Reply 0 Kudos Posted by Clint Wasser 6 Nov 2013 9:02 PM Following is the detail of the error message, which was sent to me immediately after sending the email to a cox email address. The subject heading was: Mail delivery failed.: returning message to sender ********** 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: crwasser@cox.net SMTP error from remote mail server after initial connection: hostmx.east.cox.net[68.1.17.3]: 554 eastrmimpi110 cox 174.127.108.151 blocked.Error Code: CXBL - Refer to Error Codes section athttp://postmaster.cox.
the victim of a "false positive". However, it's also important to look at your system's security to make sure your computer and/or network have not been compromised by a spammer. How spammers affect your IP reputation Spammers steal user accounts and compromised mail servers using security exploits. Once an account or server has been compromised, large amounts of spam can be sent - all without your knowledge. When email receivers see spam coming from your account or server, they may block you temporarily. What kinds of error messages will I see if I am blocked? Anti-spam error messages generally start with a number between 500 and 600, followed by a textual description of the problem. Here are some examples: Rank Code 1 451 Not currently accepting mail from your ip - psmtp 2 421 STRING (STRING) Unfortunately, some messages from 1.2.3.4 weren't sent. Please try again. We have limits for how many messages can be sent per hour and per day. You can also refer to http://mail.live.com/mail/troubleshooting.aspx#errors. 3 421 STRING.r1000.mx.aol.com Service unavailable - try again later 4 554 (RTR:BL) http://postmaster.info.aol.com/errors/554rtrbl.html 5 475 access from your network is restricted, try later 6 550 Rejected: 1.2.3.4, listed at http://csi.cloudmark.com/STRING for remediation. 7 421 STRING cox 1.2.3.4 blocked - Error Code: CDRBL - Refer to Error Codes section at http://postmaster.cox.net/confluence/display/postmaster/Error+Codes for more information. 8 571 Email from 1.2.3.4 is currently blocked by Verizon Online's STRING system. The email sender or Email Service Provider may visit http://www.verizon.net/whitelist and request removal of the block. NUMBER 9 554 5.7.1 - ERROR: Mail refused - <1.2.3.4> - See http://postmaster.rr.com/amIBlockedByRR?ip=1.2.3.4 10 421 4.4.2 service timed out. How to fix the problem If your email is being rejected, it's important to take the following steps before complaining to your service provider: Update your anti-virus software and conduct a full scan of your system to ensure that a spammer has not installed spam-sending malware on your computer. Examine the logs on your mail server - look for suspicious activity that may be coming from a compromised user account. Disable any suspicious user accounts that are sending unusual volumes of email. If you are sending to a mailing list, make sure all the recipient addresses are valid. Invalid addresses are a sign of spamming activity, and a common cause for rejection. Ch