Deal of the Day: WarmySender (10% off!)

Preview text: TL;DR: Send cold emails that reach the inbox instead of the spam folder

Thursday, Oct 22, 2026 at 10:03 AM EasternKlaviyo

AppSumoDeal of the Day: WarmySender (10% off!)

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Subject: Deal of the Day: WarmySender (10% off!)
Preview text: TL;DR: Send cold emails that reach the inbox instead of the spam folder
From: support@appsumo.com
Brand: AppSumo
ESP: Klaviyo
Sent: Thu Oct 22, 2026, 10:03 AM ET
Size: 63 KB
Images: 12
Links: 17, 3 of them buttons
Subject length: 39 characters

Against AppSumo's usual

Sent in its busiest hour, 10 AM, which holds 90% of its emails. The subject is 39 characters; its average is 19.

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.

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

	Oct 26, 2026 10:00 AM	New tools have arrived
	Oct 25, 2026 10:00 AM	Agent on duty
	Oct 23, 2026 10:05 AM	Editor in Chief
	Oct 22, 2026 10:03 AM	Deal of the Day: WarmySender (10% off!) (this email)
	Oct 21, 2026 10:01 AM	Side Grig
	Oct 20, 2026 10:01 AM	Good things leave in threes
	Oct 19, 2026 10:00 AM	Roll call