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: 5,669,537

Open Rate to yahoo.co.uk: 827,077 (14.6%)

Date range:
Display as:

Sent vs Opens for yahoo.co.uk

Date Sent Opens Open Rate
7/26/2021 11,117 1,466 0.0%
7/25/2021 2,162 328 0.0%
7/24/2021 2,516 348 0.0%
7/23/2021 8,980 1,143 0.0%
7/22/2021 7,059 994 0.0%
7/21/2021 6,509 1,211 0.0%
7/20/2021 10,491 847 0.0%
7/19/2021 4,771 917 0.0%
7/18/2021 2,429 462 0.0%
7/17/2021 2,883 519 0.0%
7/16/2021 4,274 940 0.0%
7/15/2021 6,450 1,193 0.0%
7/14/2021 8,925 1,184 0.0%
7/13/2021 13,686 1,865 0.0%
7/12/2021 10,545 1,048 0.0%
7/11/2021 2,963 523 0.0%
7/10/2021 3,629 578 0.0%
7/9/2021 11,302 1,609 0.0%
7/8/2021 16,131 2,247 0.0%
7/7/2021 8,615 1,857 0.0%
7/6/2021 10,288 1,648 0.0%
7/5/2021 9,212 1,428 0.0%
7/4/2021 3,436 526 0.0%
7/3/2021 3,535 629 0.0%
7/2/2021 7,880 1,417 0.0%
7/1/2021 8,981 2,190 0.0%
6/30/2021 8,218 1,838 0.0%
6/29/2021 5,919 1,139 0.0%
6/28/2021 8,091 1,532 0.0%
6/27/2021 2,845 504 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 1,282
554 30 Sorry, your message to cannot be delivered. This mailbox is disabled . 1,156
552 3 Requested mail action aborted, mailbox not found 239
Email was deferred due to the following reason: 17
NoMxRecord:0-0 4
535 Incorrect authentication data 3
554 Too many mail in last 24h 2
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. 1
525 5.7.13 Authentication Denied 1
552 :: auth :: Message rejected for spam or virus content :: 1
552 5.2.0 :: ded :: Message rejected for spam or virus content :: 1
550 Requested action not taken: mailbox unavailable 1
The group has exceeded its quota for total number of bytes sent. 1
421 4.7.0 Messages from 149.72.197.126 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.verizonmedia.com/error-codes 1
DNS Error. DNS type 'mx' lookup responded with code NXDOMAIN 1
421 4.7.0 Messages from 149.72.172.103 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.verizonmedia.com/error-codes 1
421 4.7.0 Messages from 149.72.94.195 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.verizonmedia.com/error-codes 1
421 4.7.0 Messages from 167.89.52.135 temporarily deferred due to unexpected volume or user complaints - 4.16.55.1; see https://postmaster.verizonmedia.com/error-codes 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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