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Using this email in an article? Credit: Kopperfield email via They Sent It, with a link to this page. Full-size image
- Subject
- Check out our free single line diagram tool
- Preview text
- Create diagrams in minutes with our pre-built templates and easy drawing tools
- From
- team@
kopperfield.com - Brand
- Kopperfield
- ESP
- Klaviyo
- Sent
- Thu Oct 22, 2026, 11:27 PM ET
- Sent to
- centerfield-electric.go-kf.com, charge-pro-texas.go-kf.com
- Size
- 36 KB
- Images
- 8
- Links
- 10, 7 of them buttons
- Subject length
- 43 characters
Against Kopperfield's usual
Sent in the 11 PM hour, which holds 4% of its emails; 16% arrive in the 2 PM hour. The subject is 43 characters; its average is 40.
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
- Mark from Kopperfield <[email protected]>
- Subject
- Check out our free single line diagram tool
- Date
- Fri, 23 Oct 2026 03:27:10 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-79
- Return-Path domain
- send.kopperfield.com
- DKIM signature
- d=kopperfield.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-dn8gx with SMTP
- from (unnamed) by geopod-ismtpd-79 with HTTP
Other sending headers (names only): X-Kmail-Account, X-Kmail-Flow, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID
Sent just before and after
| Oct 27, 2026 12:29 AM | New! National Electrical Code chatbot | |
| Oct 26, 2026 12:28 AM | Save time with panel schedules | |
| Oct 23, 2026 8:28 PM | Discover our top 5 line diagrams | |
| Oct 22, 2026 11:27 PM | Check out our free single line diagram tool (this email) | |
| Oct 22, 2026 9:19 PM | Design docs that pass inspections | |
| Oct 22, 2026 11:29 AM | Discover our top 5 line diagrams | |
| Oct 21, 2026 11:26 PM | Have you seen our automatic panel photo processing? |
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Same ESP and the closest weekly volume, sent on Oct 22, 2026.















