TWO WAYS TO START
Cold vs Pre-Warmed Infrastructure
You can build infrastructure from scratch…
or start with infrastructure that’s already aged and ready.
Cold Infrastructure (Build It Yourself)
The manual path to setting up cold outreach is often a technical bottleneck for high-growth teams.
Two ways to get brand-new domains on Mailrun:
What it looks like:
- Buy domains
- Configure DNS records
- Create inboxes
- Connect warmup tools
- Monitor sending behavior
- Wait 60–90 days before scaling
Navigating these manual steps requires significant time before you can send your first email.
What to expect:
- Slower time to launch
- Trial-and-error during warmup
- Higher risk of early deliverability issues
- Requires ongoing management
DIY setups often lead to unpredictable deliverability and technical overhead that stalls your growth.
Higher Spam Risk
Best for:
Teams optimizing for lowest upfront cost and willing to handle setup, warmup, and troubleshooting internally.
Pre-Warmed Infrastructure (Mailrun)
No setup work on your end. Every inbox is ready to send the moment you connect your sequencer.
- What it looks like:
- Domains already aged and warmed (30–90+ days)
- Inboxes provisioned on stable infrastructure
- Ready for immediate, controlled ramp
- Built for Instantly, Smartlead, and similar platforms
Instant Campaign Launch
Skip the months of domain aging and manual warmup with pre-verified assets.
- What it looks like:
- Launch in days, not months
- Reduced early-stage risk
- More consistent starting point
- Minimal setup required
Our streamlined process handles the technical heavy lifting so you can focus on your outreach strategy.
48-Hour Speed to Market
Best for:
Teams launching new outbound, agencies onboarding clients with no domain reputation, or anyone whose target volume requires fresh inboxes ready to ramp on day one.
Factors
Cold
Pre-Warmed
Time to Send
60–90 days
A few days
Setup Complexity
High
Minimal
Early Deliverability Risk
Higher during warmup phase
Reduced with aged infrastructure
Control
Full control, full responsibility
Managed infrastructure, guided use
Cost Structure
Low, predictable monthly cost.
Higher upfront, faster time to results
The Real Tradeoff
Cold infrastructure saves money upfront.
Pre-warmed infrastructure saves time, reduces avoidable mistakes, and provides a more stable starting point.
Which Should You Choose?
If you:
- Want to minimize cost
- Are comfortable managing setup and warmup
- Are okay waiting before sending Cold infrastructure makes sense.
If you:
- Want to start sending quickly
- Prefer a more stable starting point
- Don’t want to manage the warmup phase Pre-warmed infrastructure is the better fit.
Still not sure? Schedule a call and we will recommend the right fit.
Get started
Skip the 90-day wait
Most teams eventually move to pre-warmed
infrastructure after experiencing delays or
inconsistency with new domains.
You can build it yourself…
or start with something that’s already working.
