Emails Sent to comcast.net: 32,207,364
Open Rate to comcast.net: 5,307,077 (16.5%)
Sent vs Opens for comcast.net
| Date | Sent | Opens | Open Rate |
|---|---|---|---|
| 6/3/2023 | 9,022 | 1,372 | 0.0% |
| 6/2/2023 | 19,572 | 3,911 | 0.0% |
| 6/1/2023 | 32,852 | 5,573 | 0.0% |
| 5/31/2023 | 26,876 | 5,188 | 0.0% |
| 5/30/2023 | 29,612 | 4,901 | 0.0% |
| 5/29/2023 | 15,259 | 3,222 | 0.0% |
| 5/28/2023 | 11,908 | 2,679 | 0.0% |
| 5/27/2023 | 14,495 | 3,575 | 0.0% |
| 5/26/2023 | 24,099 | 5,017 | 0.0% |
| 5/25/2023 | 24,484 | 5,225 | 0.0% |
| 5/24/2023 | 38,520 | 6,817 | 0.0% |
| 5/23/2023 | 29,467 | 6,568 | 0.0% |
| 5/22/2023 | 31,286 | 4,995 | 0.0% |
| 5/21/2023 | 11,153 | 2,493 | 0.0% |
| 5/20/2023 | 8,549 | 2,117 | 0.0% |
| 5/19/2023 | 20,000 | 4,596 | 0.0% |
| 5/18/2023 | 24,334 | 5,422 | 0.0% |
| 5/17/2023 | 32,876 | 5,079 | 0.0% |
| 5/16/2023 | 28,360 | 6,178 | 0.0% |
| 5/15/2023 | 36,058 | 5,370 | 0.0% |
| 5/14/2023 | 10,769 | 2,429 | 0.0% |
| 5/13/2023 | 19,410 | 3,806 | 0.0% |
| 5/12/2023 | 23,403 | 5,099 | 0.0% |
| 5/11/2023 | 27,394 | 5,557 | 0.0% |
| 5/10/2023 | 35,543 | 5,890 | 0.0% |
| 5/9/2023 | 26,950 | 6,436 | 0.0% |
| 5/8/2023 | 35,743 | 5,692 | 0.0% |
| 5/7/2023 | 14,823 | 3,646 | 0.0% |
| 5/6/2023 | 14,184 | 3,107 | 0.0% |
| 5/5/2023 | 25,590 | 4,219 | 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 | 7,778 |
| 552 5.1.1 recipient rejected - extended quota violation | 590 |
| 550 4.2.0 Not our Customer | 255 |
| 550 5.2.0 - Account Closed, Please Remove | 201 |
| 550 5.1.1 recipient unallocated | 145 |
| 452 4.1.1 user over quota | 101 |
| 450 4.2.0 - Recipient Temporarily Unavailable, Please Try Again Later | 93 |
| 550 - message rejected AUP#SNDR | 36 |
| Message queue continuously deferred for too long. See https://sendgrid.com/docs/glossary/throttling/#what-causes-a-deferral | 35 |
| 550 5.2.0 - Recipient unavailable | 33 |
| 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 | 25 |
| 550 5.2.0 Not our Customer | 21 |
| 550 5.2.0 Message rejected due to DMARC. Please see https://postmaster.comcast.net/smtp-error-codes.php#DM000001 | 16 |
| 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. | 16 |
| SMTP; 550 5.1.1 Not our Customer | 11 |
| 450 4.2.0 - Recipient temporarily unavailable | 9 |
| 550 5.1.10 Recipient not found by SMTP address lookup | 9 |
| 452 4.2.0 user over quota | 6 |
| 550 4.2.0 recipient unallocated | 5 |
| action not taken: mailbox unavailable 550 Failure sending mail. Try again later | 4 |
| 550 5.1.8 Access denied, bad outbound sender AS | 2 |
| NoMxRecord:0-0 | 2 |
| 421 4.2.0 159.183.112.28 Throttled - try again later. Please see https://postmaster.comcast.net/smtp-error-codes.php#RL000003 | 1 |
| 550 5.7.1 : Sender address rejected: User email address is marked as invalid. | 1 |
| 550 5.1.1 : Recipient address rejected: User unknown | 1 |
| 554 5.2.2 mailbox full; Failed to process message due to a permanent exception with message Microsoft Unified Storage is full. Microsoft Unified Storage is full. | 1 |
| 550 5.7.1 Message blocked. If this is a false positive, please report this to your hosting service provider. See https://console.mailchannels.net/insights/bounce?auid=interserver&sender=admin%40theoscarichazofoundation.org&txid=74ee311343b377c0 | 1 |
| SMTP; 550 5.2.0 - Account Closed, Please Remove | 1 |
| 550 Invalid Recipient - https://community.mimecast.com/docs/DOC-1369#550 | 1 |
| 550 5.7.1 : Recipient address rejected: User email address is marked as invalid. | 1 |
| 550 5.5.0 Requested action not taken: mailbox unavailable. | 1 |
| 550 5.1.1 Recipient does not exist here. | 1 |
| DNS Error. DNS type 'mx' lookup responded with code NXDOMAIN | 1 |
| 550 5.4.1 Recipient address rejected: Access denied. AS | 1 |
| 535 Error: authentication failed, system busy | 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 |
| 530 5.1.0 sender rejected | 1 |
| 550 5.4.5 Daily user sending quota exceeded. - gsmtp | 1 |
| SMTP; 550 5.2.0 - Recipient unavailable | 1 |
| 550-5.7.1 Our system has detected that this message is 550-5.7.1 likely suspicious due to the very low reputation of the sending 550-5.7.1 domain. To best protect our users from spam, the message has been 550-5.7.1 blocked. Please visit 550 5.7.1 https://support.google.com/mail/answer/188131 | 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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