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: 7,873,947

Open Rate to yahoo.co.uk: 1,193,627 (15.2%)

Date range:
Display as:

Sent vs Opens for yahoo.co.uk

Date Sent Opens Open Rate
6/18/2022 2,492 318 0.0%
6/17/2022 4,788 1,006 0.0%
6/16/2022 5,766 1,236 0.0%
6/15/2022 5,621 1,266 0.0%
6/14/2022 5,886 1,352 0.0%
6/13/2022 3,993 995 0.0%
6/12/2022 1,855 471 0.0%
6/11/2022 1,907 275 0.0%
6/10/2022 5,328 1,224 0.0%
6/9/2022 5,929 1,374 0.0%
6/8/2022 6,038 1,351 0.0%
6/7/2022 6,067 1,398 0.0%
6/6/2022 5,008 1,281 0.0%
6/5/2022 2,100 477 0.0%
6/4/2022 2,414 441 0.0%
6/3/2022 3,476 624 0.0%
6/2/2022 3,654 708 0.0%
6/1/2022 4,874 1,017 0.0%
5/31/2022 6,512 1,371 0.0%
5/30/2022 4,599 1,020 0.0%
5/29/2022 2,508 392 0.0%
5/28/2022 3,204 478 0.0%
5/27/2022 5,056 1,021 0.0%
5/26/2022 6,773 1,608 0.0%
5/25/2022 6,851 1,382 0.0%
5/24/2022 4,762 1,276 0.0%
5/23/2022 3,387 833 0.0%
5/22/2022 2,114 347 0.0%
5/21/2022 2,711 450 0.0%
5/20/2022 4,493 1,006 0.0%

Blocks from yahoo.co.uk

No blocks during specified time frame

Bounces from yahoo.co.uk

Message Count
552 1 Requested mail action aborted, mailbox not found 1,444
554 30 Sorry, your message to cannot be delivered. This mailbox is disabled . 461
552 3 Requested mail action aborted, mailbox not found 107
Email was deferred due to the following reason: 66
NoMxRecord:0-0 5
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. 4
421 4.7.0 Messages from 168.245.115.183 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes 2
DNS Error. DNS type 'mx' lookup responded with code NXDOMAIN 2
421 4.7.0 Messages from 198.21.0.135 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes 2
421 4.7.0 Messages from 167.89.16.17 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes 2
The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. 2
535 Incorrect authentication data 1
534-5.7.9 Please log in with your web browser and then try again. 1
421 4.7.0 Messages from 149.72.128.32 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.yahooinc.com/error-codes 1
550 5.5.0 Requested action not taken: mailbox unavailable . 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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