Prime Day Math is Mathing πŸ€“

Preview text: High-performance. Even better deal

UndefinedWednesday, Oct 7, 2026 at 10:27 AM EasternKlaviyo
UndefinedPrime Day Math is Mathing πŸ€“
Subject
Prime Day Math is Mathing πŸ€“
Preview text
High-performance. Even better deal
From
dorian@undefinedco.com
Sent
Wed Oct 7, 2026, 10:27 AM ET
Sent to
un-definedbeauty.com, undefinedbeautyco.com, undefinedco.com
Size
42 KB
Images
14
Links
15, 3 of them buttons
Subject length
27 characters

Against Undefined's usual

Sent in the 10 AM hour, which holds 8% of its emails; 12% arrive in the 6 PM hour. The subject is 27 characters, the same as its average.

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
Dorian from Undefined <[email protected]>
Subject
Prime Day Math is Mathing πŸ€“
Date
Wed, 07 Oct 2026 14:27:32 +0000
Message-ID domain
klaviyomail.com
Return-Path domain
k3.send.undefinedco.com
DKIM signature
d=shared.klaviyomail.com s=def1; d=send.undefinedco.com s=mtd1
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. 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

Oct 13, 2026 1:10 AMBeauty with no BS πŸ’…πŸ½βœ¨
Oct 9, 2026 10:26 AMDon’t be shy 🀍
Oct 7, 2026 9:17 PM[LAST CALL] Better formulas. No BS ⚠️
Oct 7, 2026 10:27 AMPrime Day Math is Mathing πŸ€“ (this email)
Oct 6, 2026 12:39 PM25% off goes further hereΒ β˜…
Oct 5, 2026 11:25 PMCult favorite for a reason ✨
Oct 2, 2026 11:24 PMPro Science. Pro Inclusivity. πŸ‘©πŸΎβ€πŸ”¬

More from Undefined

All Undefined emails

Sent the same day by similar brands

Same ESP and the closest weekly volume, sent on Oct 7, 2026.

Get the Black Friday insights

We're collecting every Black Friday email from more than 41,000 brands as it lands. Get what we find: who starts first, the biggest discounts, and the subject lines that stand out.

Free. You'll get a confirmation email first, and you can unsubscribe anytime.