Deliverability to cox.net
Cox.net is owned and operated by Atlanta, Georgia-based Cox Communications, which was founded in 1962. Cox services more than 6 million customers but announced in 2019 it would no longer offer new email accounts due to dwindling interest. Cox will continue to support existing email accounts.  

Emails Sent to cox.net: 4,233,679

Open Rate to cox.net: 365,693 (8.6%)

Date range:
Display as:

Sent vs Opens for cox.net

Date Sent Opens Open Rate
7/30/2021 2,827 88 0.0%
7/29/2021 2,784 282 0.0%
7/28/2021 2,796 193 0.0%
7/27/2021 2,660 209 0.0%
7/26/2021 2,863 217 0.0%
7/25/2021 1,092 74 0.0%
7/24/2021 2,341 115 0.0%
7/23/2021 3,106 194 0.0%
7/22/2021 2,672 160 0.0%
7/21/2021 2,908 147 0.0%
7/20/2021 3,032 160 0.0%
7/19/2021 1,968 158 0.0%
7/18/2021 1,458 93 0.0%
7/17/2021 1,918 110 0.0%
7/16/2021 4,791 256 0.0%
7/15/2021 2,435 136 0.0%
7/14/2021 4,330 157 0.0%
7/13/2021 3,894 176 0.0%
7/12/2021 5,009 342 0.0%
7/11/2021 2,295 83 0.0%
7/10/2021 3,303 161 0.0%
7/9/2021 3,461 126 0.0%
7/8/2021 4,301 160 0.0%
7/7/2021 3,106 163 0.0%
7/6/2021 3,092 180 0.0%
7/5/2021 3,027 157 0.0%
7/4/2021 2,631 113 0.0%
7/3/2021 2,650 128 0.0%
7/2/2021 2,751 112 0.0%
7/1/2021 2,993 246 0.0%

Blocks from cox.net

No blocks during specified time frame

Bounces from cox.net

Message Count
550 5.1.1 Recipient address rejected: User does not exist. 2,388
Invalid:550-MailboxUnavailable 270
550 5.1.0 sender rejected. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html 168
552 5.2.2 Quota exceeded 70
Email was deferred due to the following reason: 60
452 4.1.0 server temporarily unavailable. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html 59
554 cmsmtp 149.72.197.126 is listed on Cloudmark Please visit https://csi.cloudmark.com/en/reset?ip=149.72.197.126 51
554 cmsmtp 168.245.114.95 is listed on Cloudmark Please visit https://csi.cloudmark.com/en/reset?ip=168.245.114.95 42
552 5.2.0 sender rejected. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html 25
Failed to get bounce info 23
Reached max queue time 18
421 cmsmtp too many sessions from 50.31.63.79. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html 12
554 cmsmtp 149.72.34.124 is listed on Cloudmark Please visit https://csi.cloudmark.com/en/reset?ip=149.72.34.124 10
421 cmsmtp too many sessions from 50.31.63.80. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html 9
554 cmsmtp 149.72.34.116 is listed on Cloudmark Please visit https://csi.cloudmark.com/en/reset?ip=149.72.34.116 8
554 cmsmtp 149.72.37.212 is listed on Cloudmark Please visit https://csi.cloudmark.com/en/reset?ip=149.72.37.212 7
554 cmsmtp 149.72.128.32 is listed on Cloudmark Please visit https://csi.cloudmark.com/en/reset?ip=149.72.128.32 5
421 cmsmtp too many sessions from 149.72.77.186. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html 4
5.1.0 - Unknown address error 550-'5.4.1 Recipient address rejected: Access denied. AS ' 3
550 5.4.5 Daily user sending quota exceeded. - gsmtp 3
421 cmsmtp too many sessions from 149.72.78.64. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html 2
NoMxRecord:0-0 2
rejected. /209.85.217.54 authenticated as already sent 415.4 messages for 1h. The SMTP service 550-for this hosting account will be restored in 1 hour. See 550 http://www.siteground.com/terms.htm 1
rejected. /209.85.217.47 authenticated as already sent 437.6 messages for 1h. The SMTP service 550-for this hosting account will be restored in 1 hour. See 550 http://www.siteground.com/terms.htm 1
rejected. /209.85.216.48 authenticated as already sent 472.9 messages for 1h. The SMTP service 550-for this hosting account will be restored in 1 hour. See 550 http://www.siteground.com/terms.htm 1
rejected. /209.85.217.43 authenticated as already sent 402.2 messages for 1h. The SMTP service 550-for this hosting account will be restored in 1 hour. See 550 http://www.siteground.com/terms.htm 1
550-5.1.1 The email account that you tried to reach does not exist. Please try 550-5.1.1 double-checking the recipient's email address for typos or 550-5.1.1 unnecessary spaces. 1
rejected. /209.85.217.53 authenticated as already sent 401.4 messages for 1h. The SMTP service 550-for this hosting account will be restored in 1 hour. See 550 http://www.siteground.com/terms.htm 1
rejected. /209.85.221.182 authenticated as already sent 445.6 messages for 1h. The SMTP service 550-for this hosting account will be restored in 1 hour. See 550 http://www.siteground.com/terms.htm 1
5.3.0 - Other mail system problem 550-'5.4.1 All recipient addresses rejected : Access denied. AS ' 1
Couldn't find valid recipient 1
rejected. /209.85.221.182 authenticated as already sent 418.1 messages for 1h. The SMTP service 550-for this hosting account will be restored in 1 hour. See 550 http://www.siteground.com/terms.htm 1
SMTP; 550 5.1.1 Recipient address rejected: User does not exist. 1
rejected. /209.85.222.53 authenticated as already sent 443.8 messages for 1h. The SMTP service 550-for this hosting account will be restored in 1 hour. See 550 http://www.siteground.com/terms.htm 1
rejected. /209.85.221.170 authenticated as already sent 411.0 messages for 1h. The SMTP service 550-for this hosting account will be restored in 1 hour. See 550 http://www.siteground.com/terms.htm 1
552 5.2.2 You reached your daily sending quota. Please try again tomorrow. - 1
550 5.1.9 Domain "coachesengage.com" is not configured to send emails . - 1

Methodology

Send and open statistics are updated daily. Bounces and blocks are updated in real-time. Every day, open statistics are updated for the last 14 days. Generally, you'll notice an increase of an open rate for a domain for a day over the course of 14 days, since not all open events occur the same day an email is sent. That means that open rate data is tied to the actual emails sent on a particular day.

Bounce and block codes are the codes as returned by the remote SMTP server after having been de-personalized. Meaning, unique identifiers present in SMTP codes are removed so that SMTP responses can be grouped for analysis. In certain cases, such as when the email is being relayed through an intermediary SMTP server, the remote SMTP server may not be the same as the MX record for the domain. SMTP codes are categorized as "bounces" vs "blocks" by internal human review. Bounces generally indicate an invalid email address. Blocks generally indicate a rejection of the email message but a valid email address.

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