Why your coffee stopped working
Preview text: Rivox Education 02 | Caffeine Tolerance Caffeine tolerance is real. Here’s what changes…
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- Subject
- Why your coffee stopped working
- Preview text
- Rivox Education 02 | Caffeine Tolerance Caffeine tolerance is real. Here’s what changes…
- From
- hello@
rivoxlabs.com - Brand
- Rivox Labs
- ESP
- Klaviyo
- Sent
- Thu Sep 17, 2026, 11:32 AM ET
- Size
- 19 KB
- Images
- 4
- Links
- 6, 2 of them buttons
- Subject length
- 31 characters
Against Rivox Labs's usual
Sent in the 11 AM hour, which holds 18% of its emails; 24% arrive in the 4 PM hour. The subject is 31 characters; its average is 41.
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
- Rivox Labs <[email protected]>
- Reply-To
- [email protected]
- Subject
- Why your coffee stopped working
- Date
- Thu, 17 Sep 2026 15:32:45 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
- tbfvqd.shared.klaviyomail.com
- DKIM signature
- d=shared.klaviyomail.com s=def1; d=shared.klaviyomail.com s=mtb1
- 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
| Oct 1, 2026 2:17 PM | Your first Rivox order comes loaded | |
| Oct 1, 2026 11:30 AM | The caffeine number most people get wrong | |
| Sep 24, 2026 11:31 AM | Your caffeine lasts longer than the buzz | |
| Sep 17, 2026 11:32 AM | Why your coffee stopped working (this email) | |
| Sep 10, 2026 12:10 PM | Why caffeine feels different with L-theanine | |
| Sep 7, 2026 6:30 PM | Ends tonight: 25% off Rivox | |
| Sep 4, 2026 10:17 AM | Clock out. Lock in. 25% off sitewide. |
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Your first Rivox order comes loaded
Oct 1, 2026 2:17 PM
The caffeine number most people get wrong
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Sep 17, 2026.





