Deliverability to optonline.net

Emails Sent to optonline.net: 697,291

Open Rate to optonline.net: 78,369 (11.2%)

Date range:
Display as:

Sent vs Opens for optonline.net

Date Sent Opens Open Rate
6/5/2020 1,452 91 0.0%
6/4/2020 1,061 143 0.0%
6/3/2020 2,060 283 0.0%
6/2/2020 670 92 0.0%
6/1/2020 866 67 0.0%
5/31/2020 460 29 0.0%
5/30/2020 446 38 0.0%
5/29/2020 1,049 119 0.0%
5/28/2020 771 98 0.0%
5/27/2020 1,051 103 0.0%
5/26/2020 911 148 0.0%
5/25/2020 342 56 0.0%
5/24/2020 438 42 0.0%
5/23/2020 454 70 0.0%
5/22/2020 1,249 112 0.0%
5/21/2020 775 112 0.0%
5/20/2020 1,094 197 0.0%
5/19/2020 979 109 0.0%
5/18/2020 1,469 217 0.0%
5/17/2020 1,371 144 0.0%
5/16/2020 1,366 148 0.0%
5/15/2020 1,647 197 0.0%
5/14/2020 1,491 140 0.0%
5/13/2020 1,376 133 0.0%
5/12/2020 1,690 97 0.0%
5/11/2020 904 132 0.0%
5/10/2020 538 58 0.0%
5/9/2020 796 89 0.0%
5/8/2020 1,773 149 0.0%
5/7/2020 990 137 0.0%

Blocks from optonline.net

No blocks during specified time frame

Bounces from optonline.net

Message Count
550 5.1.1 Invalid recipient 563
552 5.2.2 Quota exceeded 22
550 5.7.0 Your mail from 91.221.37.85 was rejected due to being listed by Cloudmark. See https://csi.cloudmark.com/reset-request/ 5
Message queue continuously deferred for too long. See https://sendgrid.com/docs/glossary/throttling/#what-causes-a-deferral 5
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. 3
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 3
554 5.7.1 Malware/Virus detected by content scanner. Malware/Virus name=. Message rejected. 2
450 4.2.2 : user is overquota 1
451 4.7.1 Resources restricted for host 192.185.51.162 - try again later - H4,5 - 03 1
550 5.1.8 Access denied, bad outbound sender AS 1
550 Action not taken 1
552 5.3.4 Message size limit exceeded - max for this recipient is 25165824 bytes 1
554 Message not allowed - 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.