Emails Sent to icloud.com: 47,796,594
Open Rate to icloud.com: 8,886,406 (18.6%)
Sent vs Opens for icloud.com
| Date | Sent | Opens | Open Rate |
|---|---|---|---|
| 1/25/2025 | 11,769 | 1,594 | 0.0% |
| 1/24/2025 | 17,137 | 3,860 | 0.0% |
| 1/18/2025 | 15,876 | 1,990 | 0.0% |
| 1/17/2025 | 22,557 | 5,240 | 0.0% |
| 1/16/2025 | 22,502 | 5,043 | 0.0% |
| 1/15/2025 | 21,113 | 5,135 | 0.0% |
| 1/14/2025 | 20,137 | 5,854 | 0.0% |
| 1/13/2025 | 19,895 | 4,845 | 0.0% |
| 1/12/2025 | 11,100 | 2,415 | 0.0% |
| 1/11/2025 | 10,617 | 2,221 | 0.0% |
| 1/10/2025 | 16,184 | 4,370 | 0.0% |
| 1/9/2025 | 14,494 | 3,552 | 0.0% |
| 1/8/2025 | 14,998 | 4,133 | 0.0% |
| 1/7/2025 | 17,166 | 4,757 | 0.0% |
| 1/6/2025 | 13,328 | 4,078 | 0.0% |
| 1/4/2025 | 8,393 | 1,234 | 0.0% |
| 1/3/2025 | 11,141 | 2,939 | 0.0% |
| 1/2/2025 | 12,722 | 3,601 | 0.0% |
| 1/1/2025 | 9,148 | 2,232 | 0.0% |
| 12/31/2024 | 12,710 | 3,351 | 0.0% |
| 12/30/2024 | 13,630 | 3,985 | 0.0% |
| 12/29/2024 | 8,851 | 1,980 | 0.0% |
| 12/28/2024 | 11,280 | 2,959 | 0.0% |
| 12/27/2024 | 14,761 | 2,548 | 0.0% |
| 12/26/2024 | 9,944 | 2,136 | 0.0% |
| 12/25/2024 | 10,353 | 2,642 | 0.0% |
| 12/24/2024 | 15,579 | 5,338 | 0.0% |
| 12/23/2024 | 13,091 | 4,402 | 0.0% |
| 12/22/2024 | 6,492 | 1,555 | 0.0% |
| 12/21/2024 | 5,838 | 1,581 | 0.0% |
Blocks from icloud.com
No blocks during specified time frame
Bounces from icloud.com
| Message | Count |
|---|---|
| 552 5.2.2 : user is over quota | 5,691 |
| 550 5.1.1 : user does not exist | 1,215 |
| Invalid:550-MailboxUnavailable | 342 |
| X-Postfix; Message delivery failed | 251 |
| 550 5.1.6 user no longer on system: | 136 |
| 550 5.1.1 : inactive email address | 68 |
| 550 5.2.1 user disabled; cannot receive new mail: | 43 |
| 451 4.3.0 : Temporary lookup failure | 11 |
| 501 5.1.3 Bad recipient address syntax | 9 |
| 452-4.2.2 The recipient's inbox is out of storage space. Please direct the 452-4.2.2 recipient to 452 4.2.2 https://support.google.com/mail/?p=OverQuotaTemp | 7 |
| 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. For more information, go to 550 5.1.1 https://support.google.com/mail/?p=NoSuchUser | 3 |
| The recipient server did not accept our requests to connect. For more information, go to https://support.google.com/mail/answer/7720 | 3 |
| 451-You have exceeded your permitted sending rate for 451 | 3 |
| 552-5.2.2 The recipient's inbox is out of storage space and inactive. Please 552-5.2.2 direct the recipient to 552 5.2.2 https://support.google.com/mail/?p=OverQuotaPerm | 2 |
| 550 5.2.1 Mailbox disabled, not accepting messages - freshmail | 2 |
| 552 1 Requested mail action aborted, mailbox not found | 2 |
| 5.4.7 - Delivery expired 552-'5.2.2 : user is over quota' | 2 |
| 552 5.2.2 This message could not be delivered because the recipient's mailbox is full. Please try again later or contact the recipient directly. See https://senders.yahooinc.com/smtp-error-codes#mailbox-full | 2 |
| Invalid:501-SyntaxError | 2 |
| 554 5.7.1 Message rejected due to local policy. Please visit https://support.apple.com/en-us/HT204137 | 2 |
| 554 5.7.1 : Relay access denied | 1 |
| 550 5.7.1 Delivery not authorized | 1 |
| 535 Authentication Failed | 1 |
| 450 4.1.8 : Sender address rejected: Domain not found | 1 |
| mail action aborted: exceeded storage allocation exceeded. 552 For explanation visit https://postmaster.1und1.de/en/case?c=r1503&i=ip&v=57.103.76.91&r=1Mltr9-1vpzlG16ln-00egPQ | 1 |
| 554 5.2.2 mailbox full; Failed to process message due to a permanent exception with message The process failed to get the correct properties. 1.84300, 1.84300, 1.84300F000000, 1.84300:A1000000, 1.84300, 1.84300, 1.73948, 1.108572, 0.117068, 1.79180, 1.79180F000000, 1.79180:FA000000, 255.73100, 5.95292F526F70730072, 8.111356F9FE86593ECC1F1F572B2F8F6BAC1F1F572B, 0.38698:AB037096, 1.41134, 1.41134, 7.36354A000000, 1.46439A000000, 1.115228, 0.104668, 1.41134, 7.36354, 1.46439A000000, 1.115228, 0.104 | 1 |
| X-Postfix; lost connection with mx.altice.prod.cloud.openwave.ai while performing the HELO handshake | 1 |
| X-Postfix; no content partition | 1 |
| 550 5.7.51 Rejecting. Recipient has a partner connector with or set. Connector ID: | 1 |
| SMTP; 550 5.1.1 : user does not exist | 1 |
| SMTP; 552 5.2.2 : user is over quota | 1 |
| 550 5.1.10 Recipient not found by SMTP address lookup | 1 |
| DNS Error. DNS type 'mx' lookup responded with code NXDOMAIN | 1 |
| 550 5.5.0 Requested action not taken: mailbox unavailable . | 1 |
| Message rejected. For more information, go to https://support.google.com/mail/answer/69585 | 1 |
| 550 User account has sent too many 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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