Your mouth isn't supposed to be bacteria-free
Preview text: So why do we treat it like it is?

Use this example
- Subject
- Your mouth isn't supposed to be bacteria-free
- Preview text
- So why do we treat it like it is?
- From
- hello@
feno.co - Brand
- Feno
- ESP
- Klaviyo
- Sent
- Wed Sep 2, 2026, 2:55 PM ET
- Size
- 76 KB
- Images
- 8
- Links
- 14, 5 of them buttons
- Subject length
- 45 characters
Against Feno's usual
Sent in the 2 PM hour, which holds 8% of its emails; 12% arrive in the 3 PM hour. The subject is 45 characters; its average is 37.
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
- Feno <[email protected]>
- Subject
- Your mouth isn't supposed to be bacteria-free
- Date
- Wed, 02 Sep 2026 18:55:05 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
- k3.send.feno.co
- DKIM signature
- d=shared.klaviyomail.com s=def1; d=send.feno.co s=mtd1
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- 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
Sent just before and after
| Sep 18, 2026 2:34 PM | Plaque comes back fast | |
| Sep 14, 2026 3:45 PM | What makes a toothbrush smart? | |
| Sep 9, 2026 2:16 PM | Look where your teeth meet your gums | |
| Sep 2, 2026 2:55 PM | Your mouth isn't supposed to be bacteria-free (this email) | |
| Aug 30, 2026 11:17 PM | ⏳ Don’t Lose Your Reserved Smartbrush | |
| Aug 29, 2026 11:16 PM | Why 10,000+ switched to Feno—before it sells out | |
| Aug 28, 2026 11:15 PM | 20,000 people switched. Are you next? |
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Is this hidden culprit in your mouth why you're ALWAYS tired?
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⏳ Don’t Lose Your Reserved Smartbrush
Nov 4, 2026 12:52 PM
Nov 3, 2026 12:51 PM
20,000 people switched. Are you next?
Nov 2, 2026 12:50 PM
Halloween tip from a surgeon: it's how often, not how much
Oct 31, 2026 11:08 AM
Oct 30, 2026 1:31 PM
Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Sep 2, 2026.








