What light is really doing to your brain
Preview text: Light is not just for seeing.
Using this email in an article? Credit: Ra Optics email via They Sent It, with a link to this page. Full-size image
- Subject
- What light is really doing to your brain
- Preview text
- Light is not just for seeing.
- From
- support@
raoptics.com - Brand
- Ra Optics
- ESP
- Klaviyo
- Sent
- Sun Oct 11, 2026, 9:31 AM ET
- Sent to
- raoptics.com, raoptics.io
- Size
- 35 KB
- Images
- 8
- Links
- 12, 7 of them buttons
- Subject length
- 40 characters
Against Ra Optics's usual
Sent in the 9 AM hour, which holds 9% of its emails; 15% arrive in the 10 AM hour. The subject is 40 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
- What light is really doing to your brain
- Date
- Sun, 11 Oct 2026 13:31:27 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-69
- 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-…-ntwsv with SMTP
- from (unnamed) by geopod-ismtpd-69 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
| Oct 14, 2026 6:10 AM | You spend 90% of your life under fake light. | |
| Oct 13, 2026 8:00 AM | You can't out-supplement this | |
| Oct 13, 2026 6:09 AM | Why I started Ra Optics | |
| Oct 11, 2026 9:31 AM | What light is really doing to your brain (this email) | |
| Oct 9, 2026 3:30 PM | How light controls your hormones, sleep, and health | |
| Oct 6, 2026 10:30 AM | The full Lumios lineup is back! | |
| Oct 3, 2026 10:30 AM | See you in Florida next month? |
More from Ra Optics
All Ra Optics emailsNov 8, 2026 3:30 AM
The eyewear champions trust, up to 25% off
Nov 7, 2026 4:00 AM
Attention: Early Access Is Here: Up to 25% Off Frames
Nov 6, 2026 8:44 AM
Nov 5, 2026 4:00 AM
Nov 4, 2026 5:30 AM
20% Off Every Frame Starts Now
Nov 3, 2026 10:30 AM
Our VIP Event Starts Right Now: 20% Off + Free Gift
Nov 3, 2026 7:51 AM
Nov 2, 2026 2:30 AM
Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Oct 11, 2026.
