They Sent It

What Is A Muscle Exactly?

Structure of a muscle

Institute of Human AnatomyFriday, Apr 17, 2026 at 1:30 PM EasternKlaviyo
Institute of Human AnatomyWhat Is A Muscle Exactly?
Subject
What Is A Muscle Exactly?
Preview text
Structure of a muscle
From
info@instituteofhumananatomy.com
Sent
Fri Apr 17, 2026, 1:30 PM ET
Size
46 KB
Images
18
Links
17, 7 of them buttons
Subject length
25 characters

Against Institute of Human Anatomy's usual

Sent in its busiest hour, 1 PM, which holds 56% of its emails. The subject is 25 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
What Is A Muscle Exactly?
Date
Fri, 17 Apr 2026 17:30:41 +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-203-23-144.kmta.shared.klaviyomail.com [170.203.23.144] by our receiving server with ESMTPS
  2. from (unnamed) by kmta-mta-blue-….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 19, 2026 3:17 PMDoors are closing
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? (this email)
Apr 15, 2026 1:30 PMQuick Anatomy Challenge
Apr 10, 2026 1:30 PMWhy Your Muscles Actually Grow
Apr 6, 2026 1:01 PMTextbooks vs IOHA

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.