Deliverability to optonline.net
Date range:
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Sent vs Opens for optonline.net

Date Sent Opens Open Rate
2/4/2023 899 184 0.0%
2/3/2023 1,381 384 0.0%
2/2/2023 1,674 424 0.0%
2/1/2023 2,197 355 0.0%
1/31/2023 1,625 358 0.0%
1/30/2023 2,374 401 0.0%
1/29/2023 630 141 0.0%
1/28/2023 1,058 202 0.0%
1/27/2023 2,011 541 0.0%
1/26/2023 1,701 328 0.0%
1/25/2023 3,477 440 0.0%
1/24/2023 3,311 601 0.0%
1/23/2023 3,198 581 0.0%
1/22/2023 1,585 336 0.0%
1/21/2023 2,037 453 0.0%
1/20/2023 2,559 532 0.0%
1/19/2023 3,162 721 0.0%
1/18/2023 4,729 922 0.0%
1/17/2023 3,258 712 0.0%
1/16/2023 3,480 695 0.0%
1/15/2023 1,629 371 0.0%
1/14/2023 1,486 291 0.0%
1/13/2023 2,296 515 0.0%
1/12/2023 2,639 623 0.0%
1/11/2023 2,951 543 0.0%
1/10/2023 2,285 571 0.0%
1/9/2023 2,646 485 0.0%
1/8/2023 1,437 310 0.0%
1/7/2023 1,694 284 0.0%
1/6/2023 2,269 523 0.0%

Blocks from optonline.net

No blocks during specified time frame

Bounces from optonline.net

Explanation of bounce codes

Message Count
550 RCPT TO: User unknown 865
550 5.1.1 RCPT TO: mailbox unavailable 58
554 5.1.0 Sender denied - M1 35
NoMxRecord:0-0 35
Reached max queue time 9
551 SenderAuthorization: is not authorized to send emails to this service. 6
Invalid:550-MailboxUnavailable 3
The recipient server did not accept our requests to connect. 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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