An open letter to Lumios owners
Preview text: and an opportunity for input on the future of human-friendly lighting.

Use this example
- Subject
- An open letter to Lumios owners
- Preview text
- and an opportunity for input on the future of human-friendly lighting.
- From
- support@
raoptics.com - Brand
- Ra Optics
- ESP
- Klaviyo
- Sent
- Thu Sep 24, 2026, 8:30 AM ET
- Sent to
- raoptics.com, raoptics.io
- Size
- 61 KB
- Images
- 8
- Links
- 14, 6 of them buttons
- Subject length
- 31 characters
Against Ra Optics's usual
Sent in the 8 AM hour, which holds 7% of its emails; 15% arrive in the 10 AM hour. The subject is 31 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
- Ra Optics <[email protected]>
- Subject
- An open letter to Lumios owners
- Date
- Thu, 24 Sep 2026 12:30:06 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-26
- Return-Path domain
- hello.raoptics.com
- DKIM signature
- d=raoptics.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-5trrh with SMTP
- from (unnamed) by geopod-ismtpd-26 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
Sent just before and after
| Sep 30, 2026 12:40 PM | Engineered for Perfection | |
| Sep 29, 2026 8:30 AM | Like a warm blanket for your eyes | |
| Sep 26, 2026 11:30 AM | Lumios is back in stock | |
| Sep 24, 2026 8:30 AM | An open letter to Lumios owners (this email) | |
| Sep 22, 2026 6:30 PM | Your equinox offer ends tonight | |
| Sep 22, 2026 4:51 PM | Elite athletes upgraded. Your turn. | |
| Sep 22, 2026 8:01 AM | Open this for an Equinox gift |
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Sep 24, 2026.








