Deliverability to hotmail.co.uk
Outlook.com’s o’er the pond UK sister, Hotmail.co.uk, is another Microsoft domain being phased out. While pre-transition users may keep their co.uk domain descriptors, all new users, worldwide, will have only Outlook.com as their email domain address.

Emails Sent to hotmail.co.uk: 14,751,979

Open Rate to hotmail.co.uk: 1,825,116 (12.4%)

Date range:
Display as:

Sent vs Opens for hotmail.co.uk

Date Sent Opens Open Rate
9/30/2023 1,662 216 0.0%
9/29/2023 5,724 783 0.0%
9/28/2023 6,935 1,111 0.0%
9/27/2023 6,473 1,105 0.0%
9/26/2023 6,644 1,127 0.0%
9/25/2023 4,192 845 0.0%
9/24/2023 1,577 303 0.0%
9/23/2023 1,852 393 0.0%
9/22/2023 5,031 890 0.0%
9/21/2023 5,865 1,094 0.0%
9/20/2023 6,202 1,170 0.0%
9/19/2023 6,677 1,148 0.0%
9/18/2023 6,349 1,309 0.0%
9/17/2023 1,586 343 0.0%
9/16/2023 2,006 412 0.0%
9/15/2023 6,189 1,251 0.0%
9/14/2023 6,104 1,050 0.0%
9/13/2023 5,672 1,000 0.0%
9/12/2023 4,047 907 0.0%
9/11/2023 3,159 792 0.0%
9/10/2023 1,329 301 0.0%
9/9/2023 1,573 339 0.0%
9/8/2023 7,120 1,174 0.0%
9/7/2023 5,808 1,164 0.0%
9/6/2023 7,414 1,005 0.0%
9/5/2023 6,478 1,198 0.0%
9/4/2023 5,745 893 0.0%
9/3/2023 2,023 520 0.0%
9/2/2023 2,499 494 0.0%
9/1/2023 6,328 1,123 0.0%

Blocks from hotmail.co.uk

No blocks during specified time frame

Bounces from hotmail.co.uk

Explanation of bounce codes

Message Count
550 5.5.0 Requested action not taken: mailbox unavailable . 305
Invalid:550-MailboxUnavailable 150
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. 139
550 5.5.0 Requested action not taken: mailbox unavailable. 50
DNS Error. DNS type 'mx' lookup responded with code NXDOMAIN 5
535 5.7.8 Error: authentication failed: 2
550 5.4.5 Daily user sending quota exceeded. - gsmtp 2
500 5.3.3 Unrecognized command 'STARTTLC' 1
550 5.4.300 Message expired -> 421 4.4.2 Connection dropped due to SocketError 1
550 5.4.310 DNS domain angusmotors.co.uk does not exist 1
550 5.4.310 DNS domain bartyam.com does not exist 1
550 5.4.312 Message expired, DNS query failed 1
550 5.4.6 : Recipient address rejected: Sender Domain Hourly Bounce Limit Exceeded - will not be allowed to send emails till as hourly bounce limit is exceeded. Please refer to this: 1
550 No Such User Here 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. 1
552 5.2.0 Content rejected 1
554 30 Sorry, your message to cannot be delivered. This mailbox is disabled . 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. 0.35250A004B83, 1.36674, 1.61250, 1.45378, 1.44866, 1.36674, 1.61250, 1.45378F000000, 1.44866B000000, 1.36674:A1000000, 1.61250, 1.45378E000000, 1.44866, 1.36674, 1.61250, 1.45378, 1.44866, 1.36674, 1.61250, 1.45378, 1.44866, 16.55847:FD000000, 17.43559, 20.52176F9D9A18001010F4010000, 20.50032F9D9A8817000019000000, 0.53414:F9010000, 0.35180A005B3A, 255.232 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. 0.35250A030000, 1.36674, 1.61250, 1.45378, 1.44866, 1.36674, 1.61250, 1.45378F000000, 1.44866B000000, 1.36674:A1000000, 1.61250, 1.45378E000000, 1.44866, 1.36674, 1.61250, 1.45378, 1.44866, 1.36674, 1.61250, 1.45378, 1.44866, 16.55847:FD000000, 17.43559, 20.52176F599A1A00F01F2C000000, 20.50032F599A8A170010A4000000, 0.53414, 0.35180, 255.23226C000000, 255.2 1
The recipient server did not accept our requests to connect. 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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