Emails Sent to comcast.net: 29,021,293
Open Rate to comcast.net: 4,690,184 (16.2%)
Sent vs Opens for comcast.net
| Date | Sent | Opens | Open Rate |
|---|---|---|---|
| 2/4/2023 | 12,465 | 1,449 | 0.0% |
| 2/3/2023 | 24,047 | 3,848 | 0.0% |
| 2/2/2023 | 27,026 | 4,487 | 0.0% |
| 2/1/2023 | 35,754 | 7,216 | 0.0% |
| 1/31/2023 | 30,271 | 4,812 | 0.0% |
| 1/30/2023 | 36,014 | 4,120 | 0.0% |
| 1/29/2023 | 10,265 | 1,616 | 0.0% |
| 1/28/2023 | 14,903 | 2,423 | 0.0% |
| 1/27/2023 | 20,587 | 3,384 | 0.0% |
| 1/26/2023 | 25,779 | 4,155 | 0.0% |
| 1/25/2023 | 43,901 | 5,017 | 0.0% |
| 1/24/2023 | 32,699 | 4,852 | 0.0% |
| 1/23/2023 | 40,267 | 5,451 | 0.0% |
| 1/22/2023 | 20,998 | 3,297 | 0.0% |
| 1/21/2023 | 22,663 | 3,866 | 0.0% |
| 1/20/2023 | 27,736 | 5,339 | 0.0% |
| 1/19/2023 | 36,834 | 5,612 | 0.0% |
| 1/18/2023 | 50,306 | 7,148 | 0.0% |
| 1/17/2023 | 26,465 | 5,261 | 0.0% |
| 1/16/2023 | 30,560 | 4,355 | 0.0% |
| 1/15/2023 | 13,196 | 2,871 | 0.0% |
| 1/14/2023 | 16,237 | 2,851 | 0.0% |
| 1/13/2023 | 24,311 | 4,766 | 0.0% |
| 1/12/2023 | 30,186 | 6,060 | 0.0% |
| 1/11/2023 | 35,665 | 5,307 | 0.0% |
| 1/10/2023 | 27,104 | 5,065 | 0.0% |
| 1/9/2023 | 35,141 | 5,645 | 0.0% |
| 1/8/2023 | 29,976 | 3,866 | 0.0% |
| 1/7/2023 | 24,583 | 4,930 | 0.0% |
| 1/6/2023 | 27,611 | 5,844 | 0.0% |
Blocks from comcast.net
No blocks during specified time frame
Bounces from comcast.net
| Message | Count |
|---|---|
| 550 5.1.1 Not our Customer | 6,382 |
| Email was deferred due to the following reason: | 2,323 |
| 550 4.2.0 Not our Customer | 1,715 |
| 421 4.1.0 159.183.105.191 Throttled - try again later. Please see https://postmaster.comcast.net/smtp-error-codes.php#RL000003 | 1,126 |
| Reached max queue time | 631 |
| NoMxRecord:0-0 | 538 |
| 421 4.2.0 159.183.105.191 Throttled - try again later. Please see https://postmaster.comcast.net/smtp-error-codes.php#RL000003 | 227 |
| 552 5.1.1 recipient rejected - extended quota violation | 170 |
| 550 5.1.1 recipient unallocated | 136 |
| SMTP; 550 5.1.1 Not our Customer | 114 |
| 550 5.2.0 - Recipient unavailable | 83 |
| 550 5.2.0 Not our Customer | 73 |
| 550 5.2.0 Message rejected due to DMARC. Please see https://postmaster.comcast.net/smtp-error-codes.php#DM000001 | 47 |
| 450 4.2.0 - Recipient temporarily unavailable | 47 |
| 550 4.2.0 recipient unallocated | 41 |
| 551 SenderAuthorization: is not authorized to send emails to this service. | 28 |
| 452 4.1.1 user over quota | 26 |
| 452 4.2.0 user over quota | 9 |
| This email has been blocked due to PMF Policies. | 7 |
| 550 5.1.10 Recipient not found by SMTP address lookup | 5 |
| 553 sorry, that domain isn't in my list of allowed rcpthosts; no valid cert for gatewaying | 3 |
| Connection reset by peer | 3 |
| 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. | 2 |
| 554 5.1.0 66.96.184.2 Comcast block for spam. Please see https://postmaster.comcast.net/smtp-error-codes.php#BL000000 | 2 |
| 421 Too many sessions opened | 2 |
| 550 5.1.1 is not a valid mailbox | 2 |
| 550 5.2.0 recipient unallocated | 2 |
| The recipient server did not accept our requests to connect. | 2 |
| 550-5.7.1 Messages missing a valid messageId header are not 550 5.7.1 accepted. - gsmtp | 2 |
| SMTP; 550 5.2.0 - Recipient unavailable | 2 |
| SMTP; 550 5.1.1 recipient unallocated | 2 |
| 554 5.1.0 173.231.242.8 Comcast block for spam. Please see https://postmaster.comcast.net/smtp-error-codes.php#BL000000 | 1 |
| 550 5.4.6 Unusual sending activity detected. Please try after sometime. | 1 |
| 550 5.7.520 Access denied, Your organization does not allow external forwarding. Please contact your administrator for further assistance. AS | 1 |
| 554 5.1.0 199.250.217.82 Comcast block for spam. Please see https://postmaster.comcast.net/smtp-error-codes.php#BL000000 | 1 |
| 554 5.2.121 The sender has exceeded the limit for the number of messages they can send to this recipient per hour. For more information go to http://go.microsoft.com/fwlink/?LinkId=526653. | 1 |
| 554 5.4.14 Hop count exceeded - possible mail loop ATTR34 | 1 |
| SMTP; 554 5.1.0 148.163.149.245 Comcast block for spam. Please see https://postmaster.comcast.net/smtp-error-codes.php#BL000000 | 1 |
| 554 30 Sorry, your message to cannot be delivered. This mailbox is disabled . | 1 |
| 535 Authentication Failed for | 1 |
| 421 4.1.0 192.185.144.91 Throttled - try again later. Please see https://postmaster.comcast.net/smtp-error-codes.php#RL000003 | 1 |
| 554 5.1.0 66.96.184.1 Comcast block for spam. Please see https://postmaster.comcast.net/smtp-error-codes.php#BL000000 | 1 |
| 421 4.1.0 192.185.70.14 Throttled - try again later. Please see https://postmaster.comcast.net/smtp-error-codes.php#RL000003 | 1 |
| DNS Error. DNS type 'mx' lookup responded with code NXDOMAIN | 1 |
| 550 5.7.129 not authorized to send to recipient because the sender isn't on the recipient's list of senders to accept mail from | 1 |
| 554 5.1.0 199.250.216.170 Comcast block for spam. Please see https://postmaster.comcast.net/smtp-error-codes.php#BL000000 | 1 |
| 552 5.2.0 User globalmediaadmin-bh-15.webhostbox.net administratively prohibited: cpanel account has violated hourly sending limits | 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.
Start your free trial of GMass now
Install in 30 seconds — no credit card or sign up form required