Deliverability to optonline.net
Emails Sent to optonline.net: 970,217
Open Rate to optonline.net: 102,508 (10.6%)
umich.edu
constructionconsultants.in
headoverheelsphotography.ca
kre-8.com
rickardappraisal.com
Sent vs Opens for optonline.net
| Date | Sent | Opens | Open Rate |
|---|---|---|---|
| 1/23/2021 | 915 | 50 | 0.0% |
| 1/22/2021 | 1,701 | 62 | 0.0% |
| 1/21/2021 | 1,468 | 100 | 0.0% |
| 1/20/2021 | 1,276 | 74 | 0.0% |
| 1/19/2021 | 1,671 | 135 | 0.0% |
| 1/18/2021 | 2,648 | 194 | 0.0% |
| 1/17/2021 | 1,431 | 157 | 0.0% |
| 1/16/2021 | 1,172 | 46 | 0.0% |
| 1/15/2021 | 1,179 | 111 | 0.0% |
| 1/14/2021 | 1,328 | 122 | 0.0% |
| 1/13/2021 | 1,156 | 71 | 0.0% |
| 1/12/2021 | 1,100 | 110 | 0.0% |
| 1/11/2021 | 1,287 | 121 | 0.0% |
| 1/10/2021 | 710 | 84 | 0.0% |
| 1/9/2021 | 958 | 87 | 0.0% |
| 1/8/2021 | 1,135 | 112 | 0.0% |
| 1/7/2021 | 1,349 | 170 | 0.0% |
| 1/6/2021 | 1,048 | 111 | 0.0% |
| 1/5/2021 | 1,437 | 186 | 0.0% |
| 1/4/2021 | 743 | 57 | 0.0% |
| 1/3/2021 | 400 | 33 | 0.0% |
| 1/2/2021 | 480 | 50 | 0.0% |
| 1/1/2021 | 630 | 55 | 0.0% |
| 12/31/2020 | 739 | 56 | 0.0% |
| 12/30/2020 | 1,429 | 71 | 0.0% |
| 12/29/2020 | 803 | 107 | 0.0% |
| 12/28/2020 | 566 | 80 | 0.0% |
| 12/27/2020 | 271 | 14 | 0.0% |
| 12/26/2020 | 353 | 19 | 0.0% |
| 12/25/2020 | 453 | 33 | 0.0% |
Blocks from optonline.net
No blocks during specified time frame
Bounces from optonline.net
| Message | Count |
|---|---|
| Invalid:550-MailboxUnavailable | 604 |
| 550 5.1.1 Invalid recipient | 567 |
| 552 5.2.2 Quota exceeded | 13 |
| No IPs are available for this account | 9 |
| 535 Incorrect authentication data | 8 |
| 451 4.7.1 Resources restricted for host 149.72.178.71 - try again later - J,5 - 13 | 6 |
| 550 5.7.0 Your mail from 167.89.100.169 was rejected due to being listed by Cloudmark. See https://csi.cloudmark.com/reset-request/ | 2 |
| 550 5.7.0 Your mail from 167.89.47.189 was rejected due to being listed by Cloudmark. See https://csi.cloudmark.com/reset-request/ | 1 |
| 550 5.7.0 Your mail from 167.89.61.153 was rejected due to being listed by Cloudmark. See https://csi.cloudmark.com/reset-request/ | 1 |
| 451 4.7.1 Resources restricted for host 149.72.167.116 - try again later - F,5 - 02 | 1 |
| X-Postfix; delivery temporarily suspended: host mx.optimum.net refused to talk to me: 421 4.7.1 Resources restricted - try again later - H4,0 | 1 |
| 451 4.7.1 Resources restricted for host 149.72.167.116 - try again later - G,5 - 13 | 1 |
| 451 4.7.1 Resources restricted for host 149.72.167.116 - try again later - F,5 - 03 | 1 |
| X-Postfix; delivery temporarily suspended: host mx.optimum.net refused to talk to me: 421 4.7.1 Resources restricted - try again later - H4,3 | 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.