Deliverability to optonline.net

Emails Sent to optonline.net: 970,217

Open Rate to optonline.net: 102,508 (10.6%)

Date range:
Display as:

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.