The Performance Hack That Costs Nothing

Preview text: How you breathe affects more than you'd think.

CleanMonday, Oct 5, 2026 at 7:15 AM EasternKlaviyo
CleanThe Performance Hack That Costs Nothing
Subject
The Performance Hack That Costs Nothing
Preview text
How you breathe affects more than you'd think.
From
support@cleanprogram.com
Brand
Clean
Sent
Mon Oct 5, 2026, 7:15 AM ET
Size
46 KB
Images
11
Links
15, 2 of them buttons
Subject length
39 characters

Against Clean's usual

Sent in its busiest hour, 7 AM, which holds 50% of its emails. The subject is 39 characters; its average is 38.

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
Clean <[email protected]>
Subject
The Performance Hack That Costs Nothing
Date
Mon, 05 Oct 2026 11:15:09 +0000 (UTC)
Message-ID domain
geopod-ismtpd-65
Return-Path domain
send.cleanprogram.com
DKIM signature
d=cleanprogram.com s=s1
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. by recvd-…-q5tgv with SMTP
  2. from (unnamed) by geopod-ismtpd-65 with HTTP

Other sending headers (names only): X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID

Report this email

Sent just before and after

Oct 9, 2026 12:11 PMHey friend, it's been awhile...
Oct 8, 2026 7:15 AMWeekend Mornings Just Got A Fall Upgrade
Oct 6, 2026 7:30 AMThe Scent Of Fall, Without The Toxins
Oct 5, 2026 7:15 AMThe Performance Hack That Costs Nothing (this email)
Oct 4, 2026 7:15 AMEnds Tomorrow: 25% Off Your First Subscription
Oct 3, 2026 7:45 AMRest Isn't The Break From Training. It's Part Of It.
Oct 2, 2026 6:45 AMBefore You Buy Another Prebiotic Soda, Read This.

More from Clean

All Clean emails

Sent the same day by similar brands

Same ESP and the closest weekly volume, sent on Oct 5, 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.