Deliverability to t-online.de

Emails Sent to t-online.de: 809,774

Open Rate to t-online.de: 95,777 (11.8%)

Date range:
Display as:

Sent vs Opens for t-online.de

Date Sent Opens Open Rate
7/27/2021 534 24 0.0%
7/26/2021 1,033 127 0.0%
7/25/2021 475 45 0.0%
7/24/2021 623 41 0.0%
7/23/2021 897 92 0.0%
7/22/2021 591 74 0.0%
7/21/2021 404 77 0.0%
7/20/2021 602 131 0.0%
7/19/2021 738 148 0.0%
7/18/2021 356 48 0.0%
7/17/2021 559 116 0.0%
7/16/2021 924 132 0.0%
7/15/2021 762 169 0.0%
7/14/2021 768 176 0.0%
7/13/2021 1,125 246 0.0%
7/12/2021 633 107 0.0%
7/11/2021 203 32 0.0%
7/10/2021 263 50 0.0%
7/9/2021 472 46 0.0%
7/8/2021 281 35 0.0%
7/7/2021 541 101 0.0%
7/6/2021 828 61 0.0%
7/5/2021 916 89 0.0%
7/4/2021 140 24 0.0%
7/3/2021 97 17 0.0%
7/2/2021 482 52 0.0%
7/1/2021 255 54 0.0%
6/30/2021 453 58 0.0%
6/29/2021 568 92 0.0%
6/28/2021 656 112 0.0%

Blocks from t-online.de

No blocks during specified time frame

Bounces from t-online.de

Message Count
550-5.1.1 user unknown 550 5.1.1 Unknown recipient. 751
554 IP=149.72.224.98 - A problem occurred. 26
550 Requested action not taken: mailbox unavailable 2
535 5.7.1 Authentication failed 1
550 #5.1.0 Address rejected. 1
550 5.1.1 user unknown Unknown recipient. 1
550 5.1.10 Recipient not found by SMTP address lookup 1
550 5.7.1 Unfortunately, messages from weren't sent. Please contact your Internet service provider since part of their network is on our block list . You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. 1
550 Message contained spam content 1
550-5.1.1 is not a valid recipient. Your mail system or your forwarding software is seriously broken. 550 5.1.1 Invalid recipient address. 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
554 5.7.1 : Recipient address rejected: You have exceeded the limit of 200 messages per hour and per account. Please, re-try later. 1
554 IP=129.232.250.45 - A problem occurred. 1
554 IP=149.72.131.22 - A problem occurred. 1
X-Postfix; delivery temporarily suspended: host mx01.t-online.de refused to talk to me: 554 IP=192.185.180.41 - A problem occurred. 1
X-Postfix; delivery temporarily suspended: host mx01.t-online.de refused to talk to me: 554 IP=192.185.46.194 - A problem occurred. 1
X-Postfix; delivery temporarily suspended: host mx01.t-online.de refused to talk to me: 554 IP=192.185.51.110 - A problem occurred. 1
X-Postfix; delivery temporarily suspended: host mx02.t-online.de refused to talk to me: 554 IP=192.185.148.2 - A problem occurred. 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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