Cold email infrastructure determines whether your emails reach inboxes or spam folders. Here's what every sales team needs to know.
ColdSend specializes in cold email infrastructure that works immediately, without warmup delays.
What Is Cold Email Infrastructure?
Cold email infrastructure is the technical foundation that sends and delivers your emails. It includes:
- Email servers (where emails are sent from)
- IP addresses (your sending reputation)
- Domain setup (authentication and trust signals)
- SMTP credentials (connection to email providers)
- Deliverability monitoring (tracking performance)
Simple analogy: If cold email is a highway, infrastructure is the road itself. Bad infrastructure = your emails never reach their destination.
Traditional Infrastructure vs Modern Approach
Traditional Infrastructure Setup:
- Buy new domains
- Configure DNS records (SPF, DKIM, DMARC)
- Set up email accounts
- Warm up accounts for 2-3 weeks
- Start sending (maybe)
Problem: You're building sender reputation from zero.
Modern Infrastructure Approach:
- Leverage existing trusted infrastructure
- Start sending immediately
- Monitor and optimize
Advantage: You access infrastructure that already has established reputation.
ColdSend uses the modern approach. That's why users can start sending campaigns on day one instead of waiting weeks.
Why Most Infrastructure Fails
Common Infrastructure Problems:
Shared IP addresses: Your reputation depends on other users' behavior
Poor domain setup: Missing authentication records hurt deliverability
Manual management: Human error causes configuration mistakes
Warmup failures: Even perfect warmup can fail when algorithms change
The Real Problem:
Most providers treat infrastructure as an afterthought. They focus on features and UI, not the foundation that actually delivers your emails.
ColdSend built infrastructure first. Everything else comes after ensuring your emails reach inboxes.
How to Evaluate Infrastructure Providers
Key Questions to Ask:
Can I start sending immediately?
- Yes = Modern infrastructure
- No = Traditional setup
What's your deliverability rate?
- 90%+ = Good infrastructure
- 80% or lower = Problematic
How do you handle reputation management?
- Isolated infrastructure = Good
- Shared infrastructure = Risk
What happens if deliverability drops?
- Proactive monitoring = Professional
- "Check your content" = Amateur
Red Flags:
- Requires 2-3 week warmup
- Shared infrastructure across users
- No deliverability monitoring
- Blame content for delivery issues
Green Flags:
- Immediate deployment capability
- Isolated infrastructure per user
- Proactive deliverability monitoring
- Takes responsibility for delivery
The Bottom Line
Cold email infrastructure isn't sexy, but it's everything. The best copy in the world won't work if your emails never reach inboxes.
Most providers still use traditional infrastructure approaches. That's why they require warmup and struggle with deliverability.
ColdSend rebuilt infrastructure from first principles. The result: immediate deployment with 90%+ deliverability rates.
Ready to try infrastructure that actually works? ColdSend eliminates warmup delays and delivers emails where they belong: in inboxes.
Questions about cold email infrastructure? Want to see how ColdSend compares to your current setup? Book a demo with our team.
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