Custom Calibers emails

Custom Calibers sends about 3 emails a week through Klaviyo, most often on Monday around 9 AM Eastern.

Early figures, based on 15 emails received from Mar 16 to Oct 18, 2026.

Recent emails

Subject lines average 38 characters. Each one opens the email it came from.

Sent (Eastern)	Subject	Preview text
Oct 18, 2026 11:28 PM	⚫ Your 10% code is still waiting	Use your personal code on your first Custom Calibers order.
Oct 15, 2026 11:27 PM	⚫ Still deciding what to use your 10% on?	Use your personal code on your first Custom Calibers order.
Oct 14, 2026 3:44 AM	A deadline is only useful if everyone knows it!⏰	there, top tips for placing a custom item. 🗒️✅
Oct 13, 2026 11:26 PM	⚫ Your 10% off is ready	Use your personal code on your first Custom Calibers order.
Oct 7, 2026 9:40 AM	An error with the last email we sent out...	The eagle-eyed amongst you have noticed
Oct 7, 2026 9:15 AM	🤐Is it better to ask or keep it a surprise?🎁	, keeping a gift secret is lovely until the surprise depends on guessing a detail you…
Oct 1, 2026 9:45 AM	When the recipient already owns everything🤦	“They’ve already got everything” can make a gift search feel finished before it starts.
Sep 28, 2026 10:17 AM	🤩 Choosing a Gift That Feels Personal.	Useful, sentimental or a bit of both⁉️

Counts include automated emails such as a welcome series.

Brand	ESP	Website popularity	Emails a week	Busiest day	Last sent
3D-Fuel3dfuel.com · Top 1 million sites	Klaviyo	Top 1 million sites	about 3	Thursday	Oct 30, 2026	Klaviyo · about 3 a week · busiest Thursday · last sent Oct 30, 2026
1-TDC worksSOwellworkssowell.com	Klaviyo		about 3	Friday	Oct 31, 2026	Klaviyo · about 3 a week · busiest Friday · last sent Oct 31, 2026
33Fuel33fuel.com	Klaviyo		about 3	Tuesday	Oct 30, 2026	Klaviyo · about 3 a week · busiest Tuesday · last sent Oct 30, 2026