Emails Sent to t-online.de: 1,876,247
Open Rate to t-online.de: 271,520 (14.5%)
Sent vs Opens for t-online.de
| Date | Sent | Opens | Open Rate |
|---|---|---|---|
| 1/25/2025 | 317 | 90 | 0.0% |
| 1/24/2025 | 623 | 203 | 0.0% |
| 1/18/2025 | 121 | 26 | 0.0% |
| 1/17/2025 | 426 | 110 | 0.0% |
| 1/16/2025 | 422 | 114 | 0.0% |
| 1/15/2025 | 436 | 114 | 0.0% |
| 1/14/2025 | 586 | 153 | 0.0% |
| 1/13/2025 | 720 | 203 | 0.0% |
| 1/12/2025 | 136 | 47 | 0.0% |
| 1/11/2025 | 237 | 53 | 0.0% |
| 1/10/2025 | 655 | 193 | 0.0% |
| 1/9/2025 | 646 | 168 | 0.0% |
| 1/8/2025 | 633 | 174 | 0.0% |
| 1/7/2025 | 253 | 60 | 0.0% |
| 1/6/2025 | 402 | 106 | 0.0% |
| 1/4/2025 | 164 | 22 | 0.0% |
| 1/3/2025 | 287 | 84 | 0.0% |
| 1/2/2025 | 204 | 52 | 0.0% |
| 1/1/2025 | 198 | 47 | 0.0% |
| 12/31/2024 | 278 | 84 | 0.0% |
| 12/30/2024 | 326 | 90 | 0.0% |
| 12/29/2024 | 84 | 23 | 0.0% |
| 12/28/2024 | 261 | 60 | 0.0% |
| 12/27/2024 | 308 | 92 | 0.0% |
| 12/26/2024 | 220 | 60 | 0.0% |
| 12/25/2024 | 258 | 65 | 0.0% |
| 12/24/2024 | 316 | 83 | 0.0% |
| 12/23/2024 | 430 | 141 | 0.0% |
| 12/22/2024 | 130 | 41 | 0.0% |
| 12/21/2024 | 129 | 30 | 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. | 7,002 |
| 550 5.7.1 Message rejected | 2 |
| 554 5.7.0 Reject, id=2516345-07 - spam, servertime=Mar 04 11, server=maildomain.datevnet.de, client=194.25.134.19 | 2 |
| 554 5.7.1 Your mail was rejected because of Spam - contact if you believe this to be an error | 2 |
| 554 Sorry, no mailbox here by that name. | 2 |
| action not taken: mailbox unavailable 550 For explanation visit https://postmaster.1und1.de/en/case?c=r1601&i=ip&v=194.25.134.21&r=1MLSxH-1tal6r3YBf-00JIfd | 2 |
| X-Postfix; Host or domain name not found. Name service error for name=optik-uslu.com type=A: Host not found | 2 |
| X-Postfix; Host or domain name not found. Name service error for name=steuerkanzlei-heider.de type=A: Host not found | 2 |
| 550 No such user | 1 |
| 554 5.7.0 Reject, id=1165138-03 - spam, servertime=Feb 19 14, server=maildomain.datevnet.de, client=194.25.134.19 | 1 |
| 554 5.7.0 Reject, id=1335243-07 - spam, servertime=Feb 19 14, server=maildomain.datevnet.de, client=194.25.134.80 | 1 |
| 554 5.7.0 Reject, id=1579012-15 - spam, servertime=Feb 19 14, server=mailin11.prod.datevnet.com, client=194.25.134.18 | 1 |
| 554 5.7.0 Reject, id=997416-11 - spam, servertime=Feb 18 13, server=maildomain.datevnet.de, client=194.25.134.17 | 1 |
| 554 IP=51.195.131.64 - None/bad reputation. Ask your postmaster for help or to contact for reset. | 1 |
| 554 IP=54.39.84.194 - A problem occurred. Ask your postmaster for help or to contact to clarify. | 1 |
| NoMxRecord:0-0 | 1 |
| X-Postfix; connect to endresgmbh.de: Connection timed out | 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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