My last email and a simple suggestion

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Thursday, Jun 11, 2026 at 5:03 AM EasternActiveCampaign

Derek CallanMy last email and a simple suggestion

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Against Derek Callan's usual

Sent in the 5 AM hour, which holds 11% of its emails; 28% arrive in the 1 PM hour. The subject is 37 characters, the same as its average.

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: Derek Callan <[email protected]>
Subject: My last email and a simple suggestion
Date: Thu, 11 Jun 2026 09:03:32 +0000 (GMT)
Message-ID domain: cell-3-5849c5c7d4-v488m
Return-Path domain: em-3401318.derekcallan.com
DKIM signature: d=derekcallan.com s=acdkim1; d=acems1.com s=acdkim1
Authentication: dkim=pass (derekcallan.com), dkim=pass (acems1.com), spf=pass (em-3401318.derekcallan.com), dmarc=pass (derekcallan.com)
List-Unsubscribe: Present, one-click
Mailer: ActiveCampaign Mailer
Feedback-ID sender: activecampaign

Other sending headers (names only): X-KumoRef, X-DKIM-Options, X-Virtual-Mta, X-250ok-CID, X-Sending-Engine, X-Report-Abuse, X-lid, X-mid

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