Audience intelligence
Run email like a system, not a campaign.
Import your list. See Hot, Warm, Cold, and Inactive—by real behavior.
Design sends, target precisely, and see what happened per message—delivery, engagement, and failures. Opens, clicks, and quiet periods become tiers you can act on. No aggregates. Just clear outcomes.
Amélie Laurent
Hot leadRE: Luxury condo viewing
Hi, I’m very interested in the property at 70 Washington Sq. Can we schedule a viewing for tomorrow afternoon?
- Delivered2:14 PM
- Opened2:18 PM
- Clicked “Get started”2:22 PM
- Next: follow-up emailTomorrow
What this does
Send smarter,
not harder
Import CSVs, send from your domain, and track engagement health — stop blasting blindly.
Analyze 10K+ contacts
See health metrics for:
Estimated Delivery
Under 5 minutes
Sending Cost
Included in plan
Never pay a hidden fee again
Other platforms bundle landing pages, SMS, and extras you may not need. Marshmellos is email-first—upload your list and pay for transparent sending plus storage, aligned with how we price the product.
300,000/mo · Emails
Marshmellos
Email sending and audience storage—clear tiers, no surprise platform tax in this estimate.
Typical competitors
Bundled-industry estimate at the same send volume as your selected subscription (see pricing page presets) and your contact count—sources are the vendors’ public list prices.
Trusted by teams who want clear numbers
It’s simple to start using Marshmellos
1
Open a free account and add your contacts in minutes.
2
Send from your email—we show opens and clicks.
3
Reach interested people first on every send.
Not everyone should get every email.
We built engagement-aware sending.
Not everyone on your list is in the same place — Marshmellos adjusts automatically.
Active contacts are prioritized. Quiet ones are held back. Send to engaged users first, then expand safely. Risk is flagged before you send — no manual cleanup needed.
Dynamic engagement tiers
Contacts automatically move between active → inactive based on behavior.
Large list optimized
100K+ contacts without manual segmentation.
Authenticated sending
SPF, DKIM, DMARC + domain warmup included.
Transparent analytics
Delivery, opens, clicks, bounces — raw metrics, no hidden scoring.
Amélie Laurent
RE: Luxury condo viewing
Hi, I’m very interested in the property at 70 Washington Sq. Can we schedule a viewing for tomorrow afternoon?
How it works
From import to clarity
Import your contacts
Seamlessly bring in your existing audience lists from any CRM or CSV file to get started immediately.
Send your campaign
Launch beautiful, personalized emails with confidence using our robust sending infrastructure.
Engagement signals appear
Watch in real-time as opens, clicks, and interactions flow into your dashboard.
Your audience becomes clear
Then you target confidently. Understand exactly who is engaging and tailor your next move.
Send. Improve. Repeat.
Understand your audience, improve engagement, and send smarter. Your list updates automatically after every campaign.