A drag-and-drop composer, ML-powered send-time optimization, live segment estimates, and real-time analytics — everything a modern growth team needs.
Linear <updates@linear.app>
to me · just now
LinearMarch product update
What's new in March 🚀
Shipping faster than ever
Three updates your team has been waiting for — each one cuts time from your workflow and gives you more control over how you send.
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Sending now
73% delivered24,812
recipients · Scale segment
Delivered
18,113
Opened
5,821
Clicked
1,904
A/B Test result
What's new in March 🚀
open rate
March update: see what changed
open rate
Winner sent to 18,400 remaining contacts
Drag-and-drop composer
Build campaigns visually with 20+ content blocks. No HTML knowledge required. Renders perfectly across 40+ email clients.
Dynamic segments
Target contacts by plan, behavior, location, signup date, or any custom field. Segment size updates live as you build.
A/B testing
Test up to 4 subject lines or content variants simultaneously. Automatically promote the winning variant after your chosen threshold.
Start with a proven layout or a blank canvas. Drag blocks into place, edit copy in context, and see a mobile preview before your message leaves the draft. Upload images directly, add merge tags from contact data, and save reusable sections for the team.
The editor handles spacing, responsive columns, and Outlook-safe markup automatically. Every marketing send gets an unsubscribe footer — so your brand stays polished and your program stays compliant.
Linear
updates@linear.app
Deploy instantly
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Merge tags
click to insertResolves to: Alex Chen
Client preview
All pass
Build segments from any field — plan, behavior, location, signup date, or custom attributes. The count updates as you add conditions, so you always know exactly who you're reaching before you send.
Build segment
Conditions matched with live count
Power users
2,847
contacts in segment
Avg open rate
67%
Est. LTV
$142k
Churned trials
614
contacts in segment
Avg open rate
12%
Re-engage rate
8%
Enterprise prospects
1,203
contacts in segment
Avg open rate
41%
Est. deal size
$8.4k
Watch opens and clicks arrive as they happen. Drill into per-link performance, time-of-day patterns, and device splits — all without leaving the campaign view.
March Product Update
Sent Mar 12, 2026 · Subject A won A/B test
Sent
24,920
Delivered
24,812
Opened
9,847
Clicked
3,214
Unsubscribed
12
Opens over time
24-hour window after sendTop links clicked
average open rate
average click rate
avg campaign reach
average bounce rate
Whether it's a launch, a weekly editorial, or a win-back — the same toolset adapts to every send.
🚀 New: faster exports are here
We shipped three things your team asked for…
Open rate
42.1%
Click rate
16.4%
Product updates
Turn releases into a consistent customer habit. Segment by plan or feature usage, show the most relevant improvements first, and follow opens and clicks in real time.
📬 The ideas worth your Friday
This week: rethinking onboarding from scratch…
Open rate
38.7%
Click rate
11.2%
Newsletters
Make your editorial rhythm feel effortless. Reusable blocks keep every issue on brand while saved segments and send-time optimization help each edition find its audience.
👋 We saved your workspace for you
It’s been a while — everything is right where you…
Open rate
34.5%
Click rate
9.8%
Re-engagement
Bring quiet customers back with timely, personal nudges. Build an audience from behavior, test the promise, and let a winning variant do the rest.
A composer, segmentation engine, A/B testing, and analytics in one tool — not a different SaaS for each job.
| Feature | Sendbound | Mailchimp | Brevo | HubSpot |
|---|---|---|---|---|
| Visual drag-and-drop composer | ✓ | ✓ | ✓ | ✓ |
| Live segment size estimate while building | ✓ | ✗ | ✗ | ✗ |
| A/B test up to 4 variants simultaneously | ✓ | ✗ | Partial | Partial |
| Per-contact send-time optimization (ML) | ✓ | Partial | ✗ | Partial |
| Real-time analytics during send | ✓ | ✗ | ✗ | ✓ |
| Unified transactional + campaign contacts | ✓ | ✗ | ✗ | ✗ |
| React Email template integration | ✓ | ✗ | ✗ | ✗ |
| 40+ email client previews | ✓ | Partial | Partial | ✗ |
| Campaign API for programmatic sends | ✓ | ✓ | ✓ | ✓ |
| Free tier (3,000 emails/month) | ✓ | ✗ | ✗ | ✗ |
Every campaign is tested against the major inboxes — Gmail, Outlook, Apple Mail, Yahoo, and mobile clients. Responsive markup and inline styles are generated automatically.
Create up to four subject or content variants and choose the audience percentage for the test. Sendbound selects a winner based on opens or clicks, then sends it to everyone remaining.
Yes. Import a CSV with an email column and any custom fields, then map columns during upload. New contacts are validated and deduplicated before they are eligible for a campaign.
Sendbound adds a compliant unsubscribe footer to marketing campaigns and hosts a preference page for each contact. Unsubscribes are applied immediately across every future segment.
Daily volume depends on your plan and sender reputation. We surface your available quota before scheduling, and gradually warm new sending domains to protect inbox placement.
Yes. Schedule for a fixed time, or enable send-time optimization so each recipient gets it during their predicted highest-engagement window.
