Aerosend Review 2026: Private Cold Email Infrastructure Analysis

By Puzzle Inbox Team · May 4, 2026 · 7 min read

Aerosend provides private infrastructure with dedicated IPs and domain isolation. This review covers enterprise deliverability, pricing, and use cases.

Aerosend Review: Private Cold Email Infrastructure

Aerosend is a private cold email infrastructure provider offering dedicated IP addresses and domain isolation. Similar positioning to Infraforge with slight feature differences. Targets enterprise cold email operations requiring full infrastructure control. For most cold email operations, Aerosend is over-engineered. For high-volume senders with deliverability engineering, Aerosend delivers genuine enterprise value.

What Aerosend Offers

Dedicated IP addresses per customer
Domain isolation preventing cross-contamination
Private sending infrastructure (not GWS, not MS365)
Enterprise support and compliance features
Custom MTA configuration

Aerosend Pricing

Enterprise custom pricing. Typical deployments $1,000-5,000/month+ depending on IP count and volume.

The Private Infrastructure Advantage

Unlike shared SMTP or Google Workspace alternatives:

Dedicated IPs mean your reputation is completely isolated
Domain isolation prevents any cross-sender contamination
Full control over sending environment
No dependency on third-party platform policies

The Private Infrastructure Reality

At typical cold email volumes (under 50K/day), private infrastructure rarely wins:

Dedicated IPs start at zero reputation
Warming takes 4-6 weeks
Google Workspace IP inheritance beats self-warmed SMTP at low volume
Requires technical team most cold email operations lack

Who Aerosend Is Good For

High-volume cold email operations (100K+/day)
Organizations with compliance requirements for private infrastructure
Teams with dedicated deliverability engineering

Who Should Look Elsewhere

SMB and mid-market cold email operations
Teams without technical deliverability resources
Operations under 5,000 emails/day

Aerosend vs Infraforge vs Puzzle Inbox

Aerosend and Infraforge compete in dedicated IP private infrastructure. Puzzle Inbox uses real Google Workspace reputation inheritance — better at low-to-mid volumes. At 100K+/day, private infrastructure becomes competitive.

The verdict on Aerosend: Legitimate enterprise private infrastructure. For 95% of cold email operations, Google Workspace inheritance from Puzzle Inbox delivers better results at fraction of the cost.