Emails Sent to cox.net: 6,671,232
Open Rate to cox.net: 760,075 (11.4%)
Sent vs Opens for cox.net
| Date | Sent | Opens | Open Rate |
|---|---|---|---|
| 5/27/2023 | 2,671 | 174 | 0.0% |
| 5/26/2023 | 3,447 | 465 | 0.0% |
| 5/25/2023 | 3,713 | 560 | 0.0% |
| 5/24/2023 | 5,623 | 1,097 | 0.0% |
| 5/23/2023 | 5,137 | 985 | 0.0% |
| 5/22/2023 | 5,030 | 946 | 0.0% |
| 5/21/2023 | 1,534 | 213 | 0.0% |
| 5/20/2023 | 1,919 | 237 | 0.0% |
| 5/19/2023 | 3,151 | 482 | 0.0% |
| 5/18/2023 | 4,565 | 760 | 0.0% |
| 5/17/2023 | 5,020 | 1,182 | 0.0% |
| 5/16/2023 | 4,549 | 715 | 0.0% |
| 5/15/2023 | 5,255 | 1,076 | 0.0% |
| 5/14/2023 | 2,014 | 255 | 0.0% |
| 5/13/2023 | 3,319 | 377 | 0.0% |
| 5/12/2023 | 3,597 | 583 | 0.0% |
| 5/11/2023 | 4,041 | 827 | 0.0% |
| 5/10/2023 | 5,270 | 1,264 | 0.0% |
| 5/9/2023 | 4,020 | 640 | 0.0% |
| 5/8/2023 | 5,076 | 1,144 | 0.0% |
| 5/7/2023 | 1,633 | 236 | 0.0% |
| 5/6/2023 | 2,425 | 263 | 0.0% |
| 5/5/2023 | 4,075 | 517 | 0.0% |
| 5/4/2023 | 3,572 | 665 | 0.0% |
| 5/3/2023 | 4,837 | 1,239 | 0.0% |
| 5/2/2023 | 3,499 | 1,011 | 0.0% |
| 5/1/2023 | 4,718 | 1,238 | 0.0% |
| 4/30/2023 | 1,428 | 233 | 0.0% |
| 4/29/2023 | 2,316 | 306 | 0.0% |
| 4/28/2023 | 3,932 | 686 | 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 | 5,233 |
| Invalid:550-MailboxUnavailable | 264 |
| 550 5.1.1 Recipient address rejected: User does not exist. | 146 |
| 552 5.2.2 Quota exceeded | 103 |
| Message queue continuously deferred for too long. See https://sendgrid.com/docs/glossary/throttling/#what-causes-a-deferral | 54 |
| 552 5.2.0 internal error. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html | 43 |
| 452 4.1.0 server temporarily unavailable. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html | 41 |
| 421-4.7.28 Our system has detected an unusual rate of 421-4.7.28 unsolicited mail originating from your IP address. To protect our 421-4.7.28 users from spam, mail sent from your IP address has been temporarily 421-4.7.28 rate limited. Please visit 421-4.7.28 https://support.google.com/mail/?p=UnsolicitedRateLimitError | 12 |
| 552 5.2.0 sender rejected. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html | 12 |
| 550 - message rejected AUP#SNDR | 8 |
| X-Postfix; delivery temporarily suspended: conversation with 68.1.17.4 timed out while receiving the initial server greeting | 4 |
| 552 message rejected. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html | 4 |
| X-Postfix; delivery temporarily suspended: lost connection with 68.1.17.4 while receiving the initial server greeting | 4 |
| X-Postfix; delivery temporarily suspended: host 68.1.17.4 refused to talk to me: 421 cmsmtp too many sessions from 146.20.112.67. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html | 4 |
| SMTP; 550 5.1.1 recipient address rejected | 3 |
| X-Postfix; delivery temporarily suspended: connect to 68.1.17.4: No route to host | 2 |
| 535 Incorrect authentication data | 2 |
| 550 5.1.10 Recipient not found by SMTP address lookup | 2 |
| 550 5.1.0 sender rejected. Refer to Error Codes section at https://www.cox.com/residential/support/email-error-codes.html | 1 |
| 535 Authentication failed | 1 |
| 550 5.1.8 Access denied, bad outbound sender AS | 1 |
| 550 5.4.1 Recipient address rejected: Access denied. AS | 1 |
| DNS Error. DNS type 'mx' lookup responded with code NXDOMAIN | 1 |
| 550 recipient rejected | 1 |
| 550 5.1.10 Recipient not found by SMTP address lookup ---- | 1 |
| 550-5.7.1 Messages missing a valid messageId header are not 550 5.7.1 accepted. - gsmtp | 1 |
| 550 5.1.10 Recipient shelby' not found by SMTP address lookup | 1 |
| This email has been blocked due to PMF Policies. | 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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