Deliverability to yahoo.co.uk
Yahoo.co.uk is Yahoo!’s United Kingdom equivalent. To achieve worldwide brand consistency, new Yahoo! email registrants will be assigned only the @yahoo.com domain.

Emails Sent to yahoo.co.uk: 11,157,235

Open Rate to yahoo.co.uk: 1,990,522 (17.8%)

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Sent vs Opens for yahoo.co.uk

Date Sent Opens Open Rate
1/25/2025 1,394 123 0.0%
1/24/2025 4,322 567 0.0%
1/18/2025 1,431 305 0.0%
1/17/2025 3,141 635 0.0%
1/16/2025 3,385 788 0.0%
1/15/2025 3,424 700 0.0%
1/14/2025 3,542 792 0.0%
1/13/2025 2,767 720 0.0%
1/12/2025 917 234 0.0%
1/11/2025 1,874 454 0.0%
1/10/2025 2,276 514 0.0%
1/9/2025 2,088 490 0.0%
1/8/2025 3,169 753 0.0%
1/7/2025 2,450 519 0.0%
1/6/2025 2,299 692 0.0%
1/4/2025 1,090 179 0.0%
1/3/2025 1,501 346 0.0%
1/2/2025 1,695 406 0.0%
1/1/2025 1,329 280 0.0%
12/31/2024 1,420 327 0.0%
12/30/2024 1,517 386 0.0%
12/29/2024 694 184 0.0%
12/28/2024 1,191 263 0.0%
12/27/2024 1,398 324 0.0%
12/26/2024 1,219 255 0.0%
12/25/2024 1,424 304 0.0%
12/24/2024 1,539 431 0.0%
12/23/2024 1,476 361 0.0%
12/22/2024 953 211 0.0%
12/21/2024 1,220 335 0.0%

Blocks from yahoo.co.uk

No blocks during specified time frame

Bounces from yahoo.co.uk

Explanation of bounce codes

Message Count
552 1 Requested mail action aborted, mailbox not found 913
554 30 Sorry, your message to cannot be delivered. This mailbox is disabled . 480
554 5.7.9 Message not accepted for policy reasons. See https://senders.yahooinc.com/error-codes 5
551 5.5.1 ??????,????!??????????!account abnormal,perhaps has been stolen,change your password and contact administartor please! 1
535 authentication failed 1
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 1
554 Message permanently deferred due to unresolvable From header domain onlinestorebooster.com. See https://senders.yahooinc.com/error-codes#invalid-from 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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