In the cold email industry, waiting is one of the biggest problems. You buy the inboxes and then wait for weeks before you can use them.
Email Astra solves this problem with pre-warmed Google and Microsoft inboxes. Under $5, it provides official Google and Microsoft inboxes, domains, hosting, DNS configuration, burn monitoring, and unlimited domain replacements.
In this Email Astra review, I’ll explain the complete cold outreach setup with the latest pricing, warmup, monitoring, and its impact on deliverability.
Key Takeaways
Every cold emailer wants ready-to-send inboxes, so they don’t have to wait weeks to launch their campaign. Email Astra provides pre-warmed Google and Microsoft inboxes for $5. The setup is quick, and you’re ready to send in a couple of hours.
- Inboxes: Official Google and Microsoft
- USP: Pre-warmed inboxes
- Deliverability: Limited proof
- Risk: Warmup credibility is unknown
- Starting Plan: $5/inbox, minimum 3 inbox
- Support: Accessible via WhatsApp and 24/7 access to deliverability engineers
About Email Astra
Email Astra is a cold email infrastructure provider offering pre-warmed Google and Microsoft inboxes for $5. They are pre-warmed for 21 days to build sender reputation.
The setup is automated, and DNS configuration is quick. Your inboxes are ready for cold outreach within 1-2 hours, and you can start sending cold emails from Day 1.
For $5, you’ll get pre-warmed inboxes, domains, hosting, unlimited domain replacement, and access to real deliverability experts to help you plan your campaign better.
How Email Astra Works



Email Astra Features
Pre-Warmed Google and Microsoft Inboxes
Email Astra warms its inboxes for 21 days before delivery. It provides pre-warmed inboxes for Google and Microsoft for $5. You can start sending from day 1.
Unlimited Domain Replacement
If your domain gets blocked or burned, Email Astra replaces it at no extra cost. However, it didn’t mention how much time it takes.
Master Inbox
Email Astra offers a Master inbox, where you can manage all replies from a single place.
24/7 Access to Real Deliverability Experts
You can book a 15-min call with Email Astra deliverability engineer. It claims on the website that, “if your inbox placement doesn’t hit 90%+ within 30 days, we will rebuild the entire infrastructure from scratch for FREE.”
Pros
Pre-Warmed Official Inboxes
Email Astra offers pre-warmed Google and Microsoft inboxes for $5. You don’t have to wait for weeks for cold outreach; you can start sending within a couple of hours.
Everything In One Place
Email Astra offers pre-warmed inboxes, domains, DNS, warmup, and replacements for you. So you don’t need to manage each part separately.
Quick Setup
Email Astra configures and provisions pre-warmed inboxes in a couple of hours. You can literally send emails within 2 hours of buying inboxes from Email Astra.
Guaranteed 90%+ Inbox Placement within 30 days
You can book a 15-min call with Email Astra deliverability engineer. They can help you achieve 90%+ Inbox Placement within 30 days.
Cons
No Ongoing Warmup
Email Astra provides pre-warmed Google and Microsoft inboxes. However, after delivery, you are responsible for your own warmup. Email Astra doesn’t provide ongoing warmup. You’ve to rely on your sequencer or other external tools.
Limited Transparency
Email Astra claims to monitor deliverability and provide 24/7 support, but there is little detail on how it does so.
No Warmup Methodology Defined
Email Astra warms up inboxes for 21 days and then delivers them to you. However, they didn’t mention their warmup methodology, so the credibility of warmup is unknown.
Origin Unknown for Google and Microsoft Accounts
Although the accounts are on US IPs, but they’re sourced from official resellers in India or Turkey.
Email Astra Pricing
| Category | Price/Inbox | Minimum Inboxes |
|---|---|---|
| Pre-warmed Google Inboxes | $5 | 3 |
| Pre-warmed Microsoft inboxes | $5 | 3 |
Note: The pre-warmed Google and Microsoft inboxes are billed monthly.
Aerosend: Best Email Astra Alternative
Email Astra and Aerosend both offer managed cold email infrastructure with pre-warmed inboxes and deliverability support.
Email Astra offers Google and Microsoft accounts from official resellers, while Aerosend runs its own dedicated infrastructure.
Email Astra pre-warms each inbox for about 21 days, then hands it over for $5/inbox. On the other hand, Aerosend runs warmup post-purchase, and the warmup is ongoing to maintain the inbox placement.
Here’s the brief comparison between Email Astra and Aerosend –
| Compare | Email Astra | AerosendPrivate infrastructure |
|---|---|---|
| Inbox Available | GoogleMicrosoftPre-warmedOfficial accounts via resellers, pre-warmed 21 days | Private infrastructureBuilt for cold email, so no Google or Outlook bans |
| Isolation | ✕Reseller accountsAccounts sourced from official resellers, not dedicated infrastructure | ✓DedicatedNew isolation every 10 domains / 30 inboxes, never shared |
| Warmup | ~Pre-warmed only21-day pre-warm; no ongoing warmup after delivery | ✓Included, ongoingComplimentary premium warmup, matched to who you email |
| Monitoring | ~Claimed, unverifiedClaims monitoring, little detail on how | ✓Six metricsEvery domain scored daily and surfaced to you |
| Deliverability | ~Claimed placement guaranteeClaims 90%+ placement in 30 days or free rebuild | ✓Our responsibilityBiweekly inbox placement tests, included |
| Domain Burn Alerts | ~Claimed, no criteriaUnlimited free replacement, reactive after a burn | ✓IncludedBurnt domains flagged within 5 minutes, replaced in one click |
| Pricing | $5/inboxPre-warmed Google or Microsoft, minimum 3 inboxes, monthly | $4 / inbox$2 per inbox past 150 · 30 inboxes = $120/mo |
| Ready To Test? | Visit Email Astra Website ↗ | Try Aerosend For Free |
Price/Mailbox Breakdown (~5,000 emails/day)
| Requirements | Email Astra | Aerosend |
|---|---|---|
| Inboxes | ~165 | 200 |
| Send rate per inbox | 20 to 30/day | 20 to 25/day |
| Plan | $5/inbox | Starter to Growth banded |
| Price/Inbox | $5 | $3.50 (blended) |
| Monthly total | ~$825 | ~$700 |
Email Astra Support
Email Astra mainly handles support through WhatsApp. You can also reach the team by email for account-related questions at support {at} emailastra {dot} io
The founder is directly involved, and you’ll get 24/7 access to the deliverability team.
The Verdict
Email Astra is good for teams who are looking for pre-warmed inboxes to run cold email campaigns within the next few hours. The setup is insanely quick, and you’re ready for cold outreach within 2 hours.
The price/inbox is $5. You’ll get pre-warmed Google and Microsoft inboxes, domains, replacements, etc.
On the other hand, Aerosend provides dedicated infrastructure that is designed for higher deliverability. In short, Aerosend manages deliverability for you. We conduct ongoing warmup, proactive monitoring of domains, and early diagnosis for better inbox placement.
