They Sent It

Quick Anatomy Challenge

Guess This Structure

Institute of Human AnatomyWednesday, Apr 15, 2026 at 1:30 PM EasternKlaviyo
Institute of Human AnatomyQuick Anatomy Challenge
Subject
Quick Anatomy Challenge
Preview text
Guess This Structure
From
info@instituteofhumananatomy.com
Sent
Wed Apr 15, 2026, 1:30 PM ET
Size
43 KB
Images
16
Links
15, 7 of them buttons
Subject length
23 characters

Against Institute of Human Anatomy's usual

Sent in its busiest hour, 1 PM, which holds 56% of its emails. The subject is 23 characters; its average is 31.

Email headers

What the brand's servers put on this email. Our receiving servers, the address we subscribed with and unsubscribe links are left out.

From
Institute of Human Anatomy <[email protected]>
Subject
Quick Anatomy Challenge
Date
Wed, 15 Apr 2026 17:30:07 +0000
Message-ID domain
klaviyomail.com
Return-Path domain
kjbm.instituteofhumananatomy.com
DKIM signature
d=shared.klaviyomail.com s=def1; d=instituteofhumananatomy.com s=kl1
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. from kl-203-16-21.kmta.shared.klaviyomail.com [170.203.16.21] by our receiving server with ESMTPS
  2. from (unnamed) by kmta-mta-green-….servers.clovesoftware.com with SMTP

Other sending headers (names only): X-Mailer-Info-Extra2, X-Mailer-Info, X-Mailer-Info-Extra, X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse

Report this email

Sent just before and after

Apr 18, 2026 3:18 PMOthers grabbed it. Here’s why
Apr 17, 2026 3:17 PMStill thinking about this?
Apr 17, 2026 1:30 PMWhat Is A Muscle Exactly?
Apr 15, 2026 1:30 PMQuick Anatomy Challenge (this email)
Apr 10, 2026 1:30 PMWhy Your Muscles Actually Grow
Apr 6, 2026 1:01 PMTextbooks vs IOHA
Mar 18, 2026 7:31 AMDoors are closing

More from Institute of Human Anatomy

All Institute of Human Anatomy emails

Get the Black Friday insights

We're collecting every Black Friday email from more than 50,000 brands as it lands. Get what we find: who starts first, the biggest discounts, and the subject lines that stand out.

Free. Unsubscribe anytime.