Deliverability to optonline.net

Emails Sent to optonline.net: 1,216,621

Open Rate to optonline.net: 122,128 (10.0%)

Date range:
Display as:

Sent vs Opens for optonline.net

Date Sent Opens Open Rate
7/26/2021 1,154 100 0.0%
7/25/2021 787 32 0.0%
7/24/2021 727 30 0.0%
7/23/2021 1,340 97 0.0%
7/22/2021 1,387 97 0.0%
7/21/2021 1,431 101 0.0%
7/20/2021 1,193 120 0.0%
7/19/2021 1,570 150 0.0%
7/18/2021 689 39 0.0%
7/17/2021 593 29 0.0%
7/16/2021 1,273 83 0.0%
7/15/2021 1,493 100 0.0%
7/14/2021 1,478 90 0.0%
7/13/2021 1,760 148 0.0%
7/12/2021 1,677 97 0.0%
7/11/2021 829 88 0.0%
7/10/2021 699 38 0.0%
7/9/2021 1,323 113 0.0%
7/8/2021 1,852 85 0.0%
7/7/2021 1,309 166 0.0%
7/6/2021 1,494 155 0.0%
7/5/2021 616 31 0.0%
7/4/2021 613 76 0.0%
7/3/2021 485 30 0.0%
7/2/2021 1,125 108 0.0%
7/1/2021 1,166 115 0.0%
6/30/2021 1,359 97 0.0%
6/29/2021 1,413 145 0.0%
6/28/2021 1,361 174 0.0%
6/27/2021 723 41 0.0%

Blocks from optonline.net

No blocks during specified time frame

Bounces from optonline.net

Message Count
550 5.1.1 Invalid recipient 976
Invalid:550-MailboxUnavailable 155
555 5.5.4 Sender MAIL FROM domain does not resolve permanently in DNS and does not exist. 150
550 5.7.0 Your mail from 149.72.197.126 was rejected due to being listed by Cloudmark. See https://csi.cloudmark.com/reset-request/ 30
552 5.2.2 Quota exceeded 25
550 5.7.0 Your mail from 168.245.114.95 was rejected due to being listed by Cloudmark. See https://csi.cloudmark.com/reset-request/ 18
451 4.7.1 Resources restricted for host 168.245.113.84 - try again later - J,5 - 13 12
451 4.7.1 Resources restricted for host 149.72.178.71 - try again later - J,5 - 12 8
DNS Error. DNS type 'mx' lookup responded with code NXDOMAIN 8
451 4.7.1 Resources restricted for host 149.72.134.158 - try again later - G,5 - 13 7
451 4.7.1 Resources restricted for host 149.72.178.71 - try again later - J,5 - 13 3
Couldn't find valid recipient 3
553 5.7.1 Recipient address is not acceptable. Sending denied. 2
451 4.7.1 Resources restricted for host 149.72.134.158 - try again later - G,5 - 12 1
550 5.1.10 Recipient not found by SMTP address lookup 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
Reached max queue time 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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