437 emails
437 sends about 2 emails a week through Klaviyo, most often on Tuesday around 11 AM Eastern.
- ESP
- Klaviyo
- Emails a week
- about 2
- Busiest send time
- Tuesdays at 11am ET
- Last sent
- Today · Oct 29
- Tracked since
- Mar 2026
- Emails collected
- 79
- Website popularity
- Top 1 million sites
Recent emails
Oct 29, 2026 11:00 PM
Low in Stock
Oct 27, 2026 12:15 PM
Just landed: Polar Fleece
Oct 22, 2026 1:57 PM
Shortlisted for Your Next Class
Oct 20, 2026 5:00 PM
Soft Enough to Keep On All Day
Oct 13, 2026 11:08 AM
437 x MANANA
Oct 11, 2026 3:00 PM
437 X MANANA
Recent subject lines
All subject linesSubject lines average 21 characters. Each one opens the email it came from.
| Picture | Sent (Eastern) | Subject | Preview text |
|---|---|---|---|
| Oct 29, 2026 11:00 PM | Low in Stock | Get yours before they go | |
| Oct 27, 2026 12:15 PM | Just landed: Polar Fleece | Lightweight warmth that layers without hiding your set. | |
| Oct 22, 2026 1:57 PM | Shortlisted for Your Next Class | Our current favorites, all in one place | |
| Oct 20, 2026 5:00 PM | Soft Enough to Keep On All Day | Moisture-wicking, brushed, and cropped just right. | |
| Oct 13, 2026 11:08 AM | 437 x MANANA | Now Available to Shop → | |
| Oct 11, 2026 3:00 PM | 437 X MANANA | Coming Soon | |
| Oct 8, 2026 11:00 PM | For your Days Off | 100% cotton, tailored sweats | |
| Oct 7, 2026 1:01 AM | Introducing: The Signature Bra | Created through conversation with our community |
Archive
View full archiveOctober 2026 10 emails
View allOct 8, 2026 11:00 PM
Introducing: The Signature Bra
Oct 7, 2026 1:01 AM
Oct 3, 2026 1:01 PM
Oct 1, 2026 9:00 PM
September 2026 10 emails
View allIntroducing: The Signature Bra
Sep 26, 2026 1:34 PM
Sep 22, 2026 11:19 AM
Sep 18, 2026 11:15 AM
Sep 15, 2026 11:19 AM
Sep 13, 2026 3:45 PM
Sep 12, 2026 10:32 AM
Sep 7, 2026 10:08 AM
Sep 5, 2026 11:30 AM
Sep 4, 2026 5:02 PM
Sep 2, 2026 3:30 PM
When 437 sends
28% of its emails arrive in the 11 AM hour. Tuesdays are the busiest day.
| 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Tue | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 3 | 3 | 0 | 1 | 1 | 3 | 1 | 0 | 0 | 1 | 0 | 0 |
| Wed | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Thu | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3 | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 |
| Fri | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sat | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sun | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 1 | 1 | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mon | Tue | Wed | Thu | Fri | Sat | Sun | |
|---|---|---|---|---|---|---|---|
| 12a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1a | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| 2a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 5a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 6a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 7a | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 8a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 9a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 10a | 2 | 1 | 0 | 1 | 2 | 1 | 2 |
| 11a | 3 | 5 | 1 | 2 | 4 | 3 | 4 |
| 12p | 2 | 3 | 0 | 3 | 0 | 0 | 1 |
| 1p | 1 | 3 | 2 | 1 | 1 | 3 | 1 |
| 2p | 0 | 0 | 0 | 3 | 0 | 0 | 1 |
| 3p | 0 | 1 | 1 | 1 | 1 | 0 | 3 |
| 4p | 0 | 1 | 1 | 0 | 0 | 0 | 1 |
| 5p | 0 | 3 | 0 | 0 | 1 | 0 | 0 |
| 6p | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| 7p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 8p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 9p | 0 | 1 | 0 | 1 | 0 | 0 | 0 |
| 10p | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 11p | 0 | 0 | 0 | 2 | 0 | 0 | 0 |
FewerMore(busiest cell: 5 emails)
Based on 79 emails received from Mar 16 to Oct 29, 2026. Times in US Eastern. How we collect · When all brands send
How often 437 sends
Complete months have run between 8 and 16 emails.
- Busiest month
- Aug 2026, 16
- Quietest month
- Apr 2026, 8
- Busiest day
- Tuesday, 19
- Quietest day
- Wednesday, 7
About 437
- ESP
- Klaviyo
- Website popularity (CrUX)
- Top 1 million sites
- Tracked since
- Mar 2026
- Emails collected
- 79
- Emails a week
- about 2
- Last sent
- Oct 29, 2026
- Sends from
- info@
shop437.com - Subject length
- 21 characters avg
Counts include automated emails such as a welcome series. Website popularity is the bracket the brand's site falls in by visits, from Google's public Chrome UX Report (CrUX).
Similar sending frequency
| Latest email | Brand | ESP | Website popularity | Emails a week | Busiest day | Last sent | |
|---|---|---|---|---|---|---|---|
 3D-Fuel3dfuel.com · Top 1 million sites | Klaviyo | Top 1 million sites | about 2 | Thursday | Oct 29, 2026 | Klaviyo · about 2 a week · busiest Thursday · last sent Oct 29, 2026 | |
 686686.com · Top 500,000 sites | Klaviyo | Top 500,000 sites | about 2 | Thursday | Oct 29, 2026 | Klaviyo · about 2 a week · busiest Thursday · last sent Oct 29, 2026 | |
 A Domaniadomanisleep.com | Klaviyo | about 2 | Tuesday | Oct 29, 2026 | Klaviyo · about 2 a week · busiest Tuesday · last sent Oct 29, 2026 |
