Top 5 Pre-Warmed Email Accounts Providers in 2025
If you’ve ever tried running cold email campaigns at scale, you know the pain.
New inboxes don’t just magically work; they need weeks of warming up.
You spend time:
- Setting up domains and email accounts
- Running sending cycles carefully to build trust
- Checking that emails actually land in inboxes
One small mistake and your outreach can fail before it even starts.
This is why many sales teams and growth marketers turn to pre-warmed email accounts.
These accounts already have a history, a good reputation, and can be plugged into your email tools right away.
In this guide, you’ll learn:
- How to pick a reliable pre-warmed email account provider
- The top 5 pre-warmed email account providers in 2025
- Common mistakes and red flags to avoid
Whether you’re launching your first campaign or managing 10,000+ contacts a month, this guide will help you save time and get better results.
TL;DR - Top 5 Pre-Warmed Email Account Providers in 2025
- Infraforge – Best for affordable, pre-warmed Gmail & custom domain accounts.
- Instantly – Great for fast onboarding and bulk email campaigns.
- Zapmail – Best for pre-warmed accounts that integrate easily with CRMs.
- Email Astra – Ideal for pre-warmed accounts for small teams.
- Mailscale – Great for scalable, high-volume email outreach with advanced reputation monitoring.
How We Evaluated the Best Pre-Warmed Email Account Providers
Before selecting the top 5 pre-warmed email account providers, we focused on features that matter most for reliable cold email outreach:
- Deliverability & Inbox Reputation → How likely emails are to reach the inbox and avoid spam filters.
- Warm-Up Quality & History → Whether accounts were genuinely pre-warmed and ready to send.
- Domain Options & Flexibility → Availability of Gmail, Google Workspace, and custom domains.
- Integration with Outreach Tools → How easily accounts connect with platforms like Smartlead, Salesflare, or Apollo.
- Scalability & Volume → Whether providers can support both small campaigns and large-scale outreach.
- Pricing & Value → Cost transparency and suitability for startups, agencies, and enterprises.
By using these factors, we shortlisted the 5 best pre-warmed email account providers that give reliable, ready-to-send inboxes for your outreach campaigns.
Top 5 Pre-Warmed Email Account Providers in 2025: Quick Comparison
1. Infraforge – Best for Reliable Gmail & Custom Domain Accounts
Infraforge is a private email infrastructure tool designed for cold outreach.
Instead of shared pools, it gives you dedicated IPs and pre-warmed Gmail or custom-domain accounts.
All the setup, warm-up, and monitoring are handled in the background, so your campaigns can start sending within minutes without worrying about inbox placement.
Key Features of Infraforge:
- Infraforge provides pre-warmed Gmail and custom-domain mailboxes that already have a strong reputation and sending history.
- You get dedicated IPs with multi-IP support, which keeps deliverability under your direct control.
- The platform sets up SPF, DKIM, and DMARC records automatically, so you don’t need technical skills to configure them.
- You can create domains and mailboxes in bulk, making it easy to scale outreach quickly.
- Built-in sender rotation and smart sending limits keep accounts safe from being flagged as spam.
- The system includes SSL and domain masking, giving you secure and branded links.
Pros of Infraforge:
- The setup process is fast, often within 5 minutes.
- The inbox deliverability is strong, outperforming Google Workspace or Outlook.
- Infraforge’s pricing is fair, especially for bulk mailboxes.
- Its dashboard is simple and makes managing multiple mailboxes easier.
Cons of Infraforge:
- The documentation should cover advanced setups in more detail.
Infraforge Pricing:
Infraforge pricing is based on two things, domains and mailboxes.
- Domains → $14 per .com domain per year. Example: 5 domains = $70/year.
- Mailboxes → Minimum 10 mailbox slots.
- $17/month if billed yearly.
- $20/month if billed quarterly.
- $17/month if billed yearly.
So, if you want to contact 1,000 people per month with 2 emails each:
- You’ll need 5 domains ($70/year).
- And at least 10 mailbox slots ($17/month yearly billing).
This setup lets you start sending with warm, deliverable inboxes.
Best For: Teams and agencies that want ready-to-send Gmail and custom-domain accounts with guaranteed deliverability from day one.
If your priority is control and reliability, Infraforge is one of the most trusted ways to get pre-warmed accounts running instantly and scale outreach without any spam issues.
2. Instantly – Ideal for Bulk Pre-Warmed Accounts
Instantly is one of the most popular sales engagement platforms, and it also offers pre-warmed email accounts that are ready to use on day one.
These accounts come fully set up with SPF, DKIM, DMARC, and weeks of warm-up already done on high-quality U.S. IP Google accounts.
This means you can launch cold email campaigns immediately without waiting through a long warm-up period.
Key Features of Instantly;
- Instantly gives you ready-made Google accounts that are pre-warmed and optimized for inbox placement.
- All accounts come with SPF, DKIM, and DMARC records configured, saving hours of setup work.
- You can scale outreach by adding bulk accounts in just a few clicks.
- Pre-warmed accounts can be used to re-engage old leads without hurting your existing reputation.
- The platform integrates seamlessly with Instantly’s outreach workflows and CRM features.
Pros of Instantly:
- Instantly is easy to use, even for beginners.
- You can add unlimited accounts, making it simple to scale outreach.
Cons of Instantly:
- Pricing can get expensive at higher plans.
- The advanced features, like deep analytics or HubSpot sync, are missing.
- There’s a learning curve with campaign setup when using advanced functions.
Instantly Pricing:
- Growth Plan: $47/month
- Supersonic Plan: $97/month
- Hypergrowth Plan: $197/month (scales up to 200K credits)
- Pre-warmed accounts are included as part of these outreach plans, with no extra setup fees.
Best For: Agencies and startups that want bulk pre-warmed Gmail accounts for high-volume campaigns without waiting weeks for warm-up.
If you need to start sending at scale immediately, Instantly is one of the fastest ways to get pre-warmed accounts live and running large campaigns in just a few clicks.
Check out our complete Instantly review!
3. Zapmail – Great for Automation-Friendly Email Accounts
Zapmail offers pre-warmed Google and Microsoft mailboxes that are ready to send from day one.
Every account comes with 12+ weeks of warm-up history, realistic sender profiles, clean domains, and properly set up DNS records (SPF, DKIM, DMARC).
Built for cold email deliverability, Zapmail makes it easy to plug new accounts into your outreach tools without spending weeks on manual warm-up.
Key Features of Zapmail:
- Zapmail provides pre-warmed Gmail and Outlook mailboxes that already have over 12 weeks of sending history.
- Each mailbox is set up with SPF, DKIM, DMARC, and custom tracking domains, so you don’t need to handle DNS manually.
- You can connect new accounts through OAuth in just a few clicks, no technical steps required.
- Zapmail is designed for CRM and outreach integrations, making it automation-friendly.
Pros of Zapmail:
- Zapmail is easy to set up, with OAuth login making it quick.
- It’s good for scaling fast, especially with bulk mailbox packs.
Cons of Zapmail:
- The pricing transparency could be better (need to contact for custom plans in some cases).
- There could be more providers beyond G Suite and Outlook (e.g., Office 365 support).
Zapmail Pricing:
- Starter Plan: $39/month (10 mailboxes, extra at $3.50 each).
- Growth Plan: $99/month (30 mailboxes, extra at $3.25 each).
- Pro Plan: $299/month (100 mailboxes, extra at $3.00 each).
- All plans include US/EU IPs, instant setup, DNS management, and bulk mailbox customization.
Best For: Sales teams and agencies that want automation-friendly Gmail and Outlook accounts with long warm-up history and fast CRM integrations.
Zapmail is a strong choice if your priority is automation and CRM integration, letting you scale campaigns instantly with inbox-ready mailboxes that seamlessly integrate into your outreach stack.
5 Zapmail Alternatives & Competitors Used By Top Consultants
4. Email Astra – Best Affordable Pre-Warmed Accounts
Email Astra is a budget-friendly provider of pre-warmed email accounts that are ready for cold outreach the moment you receive them.
Instead of waiting through 14+ days of warm-up, you can activate accounts instantly and start sending campaigns right away.
The platform is designed for individuals, startups, and agencies that want affordable, inbox-ready accounts without compromising deliverability.
Key Features of Email Astra:
- Each mailbox is pre-configured with MX, SPF, DKIM, and DMARC records for better inbox placement.
- Email Astra provides custom .com domains, giving outreach a professional appearance.
- Mailboxes are compatible with all major cold email tools, ensuring smooth integration.
Pros of Email Astra:
- You can skip the warm-up wait and start campaigns immediately.
- Bulk purchase options allow agencies to scale quickly.
- Continuous support is included at no extra cost.
Cons of Email Astra:
- A minimum purchase requirement applies (6 mailboxes monthly, 15 mailboxes yearly).
- Only .com domains are supported, with no variety in TLDs.
- Currently, no independent user ratings or reviews are available, making it harder to validate performance compared to established providers.
Email Astra Pricing:
- Monthly plan: $4 per mailbox (minimum 6 mailboxes).
- Yearly plan: $3 per mailbox (minimum 15 mailboxes).
- Both plans include instant setup, custom domains, setup help, and 24/7 support.
Best For: Freelancers, startups, and small agencies that want affordable, pre-warmed accounts without waiting through long warm-up cycles.
For anyone looking to launch cold email campaigns quickly and cheaply, Email Astra provides one of the most cost-effective pre-warmed account solutions.
5. Mailscale – Best for Renting Pre-Warmed Inboxes
Mailscale offers a simple way to rent pre-warmed email inboxes so you can skip the 2–4 week warm-up process and start cold outreach immediately.
Instead of buying your own domains and handling DNS setup, Mailscale provides ready-to-send inboxes on generic domains that are already configured for high deliverability.
This makes it one of the fastest and most affordable ways to scale cold email campaigns without technical overhead.
Key Features of Mailscale:
- Inboxes are delivered pre-warmed with 95–100% deliverability guaranteed.
- Generic domains (.com and .info) are included, so you don’t need to buy or configure your own.
- Each inbox comes with SPF, DKIM, DMARC, and DNS records pre-set for deliverability.
- Inboxes can be forwarded to your main domain, keeping branding intact while protecting your primary reputation.
Pros of Mailscale:
- You can launch 20–50 inboxes in minutes.
- You can save big on domains + inbox costs.
Cons of Mailscale:
- Inboxes are rented and not tied to their brand.
- You will have to jump to higher tiers instead of paying per extra inbox.
- A downside for teams wanting branded domains for trust.
Mailscale Pricing:
- Starter Plan: $99/month for 20 pre-warmed inboxes (includes free domains and 5-minute setup).
- Custom plans available for larger teams.
- Deliverability guarantee: 95–100% inbox placement or refund/new domains provided.
Best For: Agencies, freelancers, and SaaS teams that want to scale outreach fast without handling technical setup or domain costs.
If you need to rent inboxes for immediate cold outreach at scale, Mailscale is one of the most ideal choices, particularly for fast growth, although it may be less suited for those who want to own and control their own domains.
Check out our complete Mailscale review blog!
Which Pre-Warmed Email Accounts Provider Should You Choose in 2025?
The right provider depends on how you want to run your cold email outreach:
- Mailscale – best if you want a quick, low-cost way to rent inboxes and scale fast.
- Instantly – great for agencies already using their outreach tool and want inboxes ready on day one.
- Zapmail – useful if you need longer warm-up history and CRM-friendly integration.
- Email Astra – simple and affordable option for small teams who just need pre-warmed inboxes to get started.
But if you want something more reliable and long-term, Infraforge is a better choice. Unlike most providers, it gives you two paths:
- Pre-warmed infrastructure → start sending immediately without waiting weeks.
- Private, dedicated infrastructure → own your domains, inboxes, and IPs with automated DNS setup and scaling built-in.
This flexibility makes Infraforge safer for serious teams, agencies, and businesses who don’t want to depend on rented accounts.
You can launch campaigns fast and still have full control of your sending setup as you grow.
If you’re planning to scale beyond just a few inboxes, Infraforge is the top pick.
A Better Alternative to Pre-Warmed Account Providers: Primeforge
Most providers sell you pre-warmed inboxes on rented or generic domains.
They work fast but, you don’t own the domains, deliverability may drop over time, and scaling can get expensive.
Primeforge takes a different path. Instead of renting inboxes, it gives you Google Workspace and Microsoft 365 mailboxes that you fully own and that are built specifically for cold outreach.
You don’t get “pre-warmed” accounts, but you do get:
- Free automated setup of DNS records (SPF, DKIM, DMARC).
- Ready in 30 minutes, not weeks of manual work.
- US IP addresses to boost trust and inbox placement.
- Mailbox profile pics & GIFs to stand out in prospects’ inboxes.
- Affordable pricing at $3.5–$4.5 per mailbox per month (cheaper than Google or Microsoft direct).
- Works with any sending software, including Salesforge, Instantly, and Smartlead.
With Primeforge, you’re not locked into rented inboxes that you could lose anytime.
You build a long-term, stable email infrastructure on Google and Microsoft domains that scales with your team safely.
Sign up with Primeforge now!