How light influences your hormones
Preview text: Email 96 Cortisol, melatonin, light, and Ra Optics
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- Subject
- How light influences your hormones
- Preview text
- Email 96 Cortisol, melatonin, light, and Ra Optics
- From
- support@
raoptics.com - Brand
- Ra Optics
- ESP
- Klaviyo
- Sent
- Tue Aug 11, 2026, 8:30 AM ET
- Sent to
- raoptics.com, raoptics.io
- Size
- 40 KB
- Images
- 14
- Links
- 16, 6 of them buttons
- Subject length
- 34 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 34 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]>
- Reply-To
- [email protected]
- Subject
- How light influences your hormones
- Date
- Tue, 11 Aug 2026 12:30:15 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-10
- 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-…-9jj46 with SMTP
- from (unnamed) by geopod-ismtpd-10 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
| Aug 16, 2026 8:30 AM | Daylight, BlueSync, Sunset. 20% off ends tomorrow night | |
| Aug 15, 2026 9:05 AM | A lens for every time of day, 20% off | |
| Aug 14, 2026 2:45 PM | Notice the days getting shorter? This year is flying by - A note from me, and our End of Summer Sale | |
| Aug 11, 2026 8:30 AM | How light influences your hormones (this email) | |
| Aug 8, 2026 10:04 AM | Why are so many people wearing Ra Optics? | |
| Aug 6, 2026 3:30 PM | Not sure what to get? Start here. | |
| Aug 4, 2026 10:22 AM | The world's first performance enhancing eyewear |
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