You're invited: The Nutrition of Light — free webinar this Saturday
Preview text: Email 96 Join Matt and Dr. Catherine Clinton for a free live event on light, biology, and…
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- Subject
- You're invited: The Nutrition of Light — free webinar this Saturday
- Preview text
- Email 96 Join Matt and Dr. Catherine Clinton for a free live event on light, biology, and…
- From
- support@
raoptics.com - Brand
- Ra Optics
- ESP
- Klaviyo
- Sent
- Tue Apr 21, 2026, 12:32 PM ET
- Sent to
- raoptics.com, raoptics.io
- Size
- 49 KB
- Images
- 14
- Links
- 16, 2 of them buttons
- Subject length
- 69 characters
Against Ra Optics's usual
Sent in the 12 PM hour, which holds 6% of its emails; 16% arrive in the 10 AM hour. The subject is 69 characters; its average is 38.
Email headers
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- From
- Ra Optics <[email protected]>
- Reply-To
- [email protected]
- Subject
- You're invited: The Nutrition of Light — free webinar this Saturday
- Date
- Tue, 21 Apr 2026 16:32:02 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-17
- Return-Path domain
- hello.raoptics.com
- DKIM signature
- d=raoptics.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- from o1283.shared.klaviyomail.com [167.89.72.26] by our receiving server with ESMTPS
- by recvd-…-7qgzz with SMTP
- from (unnamed) by geopod-ismtpd-17 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
| May 1, 2026 1:14 PM | Engineered for Perfection | |
| Apr 30, 2026 4:10 AM | Your body will thank you. | |
| Apr 27, 2026 3:00 PM | You spend 90% of your life under harmful light. | |
| Apr 21, 2026 12:32 PM | You're invited: The Nutrition of Light — free webinar this Saturday (this email) | |
| Apr 18, 2026 12:30 PM | Your metabolism has a light problem | |
| Apr 16, 2026 7:50 AM | Engineered for Perfection | |
| Apr 15, 2026 7:50 AM | Your body will thank you. |
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