Deliverability to cox.net

Emails Sent to cox.net: 3,155,105

Open Rate to cox.net: 301,063 (9.5%)

Date range:
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Sent vs Opens for cox.net

Date Sent Opens Open Rate
8/11/2020 2,859 168 0.0%
8/10/2020 2,332 153 0.0%
8/9/2020 903 58 0.0%
8/8/2020 1,546 133 0.0%
8/7/2020 2,482 170 0.0%
8/6/2020 3,494 211 0.0%
8/5/2020 3,076 214 0.0%
8/4/2020 2,158 164 0.0%
8/3/2020 2,492 210 0.0%
8/2/2020 2,029 90 0.0%
8/1/2020 1,625 119 0.0%
7/31/2020 2,949 219 0.0%
7/30/2020 2,637 209 0.0%
7/29/2020 4,089 346 0.0%
7/28/2020 3,902 256 0.0%
7/27/2020 3,998 369 0.0%
7/26/2020 2,580 97 0.0%
7/25/2020 1,877 139 0.0%
7/24/2020 3,557 282 0.0%
7/23/2020 4,418 366 0.0%
7/22/2020 3,133 274 0.0%
7/21/2020 2,961 166 0.0%
7/20/2020 3,693 180 0.0%
7/19/2020 1,227 88 0.0%
7/18/2020 1,508 140 0.0%
7/17/2020 2,437 166 0.0%
7/16/2020 5,771 455 0.0%
7/15/2020 10,087 220 0.0%
7/14/2020 5,970 224 0.0%
7/13/2020 2,664 229 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. 2,624
552 5.2.2 Quota exceeded 108
550: 550 13
550 permanent failure for one or more recipients 12
552 5.2.0 sender rejected. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html 12
450 4.7.0 too long without DATA command 6
551 SenderAuthorization: is not authorized to send emails to this service. 3
535 Incorrect authentication data 1
554 6.6.0 Error sending message for delivery. 1
554 cmsmtp 149.72.197.126 is listed on Cloudmark Please visit https://csi.cloudmark.com/en/reset?ip=149.72.197.126 1
554 cmsmtp 31.193.136.168 is listed on Cloudmark Please visit https://csi.cloudmark.com/en/reset?ip=31.193.136.168 1
554 Reject by content spam 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.