Deliverability to umich.edu
Date range:
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Sent vs Opens for umich.edu

Date Sent Opens Open Rate
10/1/2022 434 94 0.0%
9/30/2022 669 103 0.0%
9/29/2022 1,227 189 0.0%
9/28/2022 794 151 0.0%
9/27/2022 830 112 0.0%
9/26/2022 1,144 225 0.0%
9/25/2022 215 28 0.0%
9/24/2022 334 64 0.0%
9/23/2022 1,012 194 0.0%
9/22/2022 699 121 0.0%
9/21/2022 807 144 0.0%
9/20/2022 1,165 241 0.0%
9/19/2022 614 129 0.0%
9/18/2022 135 19 0.0%
9/17/2022 283 65 0.0%
9/16/2022 900 165 0.0%
9/15/2022 1,001 314 0.0%
9/14/2022 686 142 0.0%
9/13/2022 726 152 0.0%
9/12/2022 5,373 105 0.0%
9/11/2022 217 30 0.0%
9/10/2022 277 45 0.0%
9/9/2022 779 133 0.0%
9/8/2022 775 104 0.0%
9/7/2022 1,496 115 0.0%
9/6/2022 1,184 127 0.0%
9/5/2022 2,922 61 0.0%
9/4/2022 2,588 84 0.0%
9/3/2022 840 43 0.0%
9/2/2022 587 105 0.0%

Blocks from umich.edu

No blocks during specified time frame

Bounces from umich.edu

Explanation of bounce codes

Message Count
550 Requested action failed: User not found 195
Invalid:550-MailboxUnavailable 120
NoMxRecord:0-0 3
550 Unknown host: 2
SMTP; 550 Requested action failed: User not found 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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