5 White-label Email Hosting Providers in 2025
If you sell hosting, SaaS, or IT services, adding white-label email hosting can instantly open a new revenue stream. Instead of sending clients to Google Workspace or Zoho, you can resell professional email under your own brand - keeping full control over pricing, billing, and customer relationships.
With the right provider, you don’t manage servers or DNS yourself. The backend is handled for you - you just rebrand the service, set your price, and earn recurring profit from every mailbox sold.
Here’s what makes it appealing to resellers:
- Your logo and domain appear everywhere - not the provider’s.
- You skip all the technical setup or maintenance.
- You decide the margins and scale as your client base grows.
In this guide, you’ll find the 5 best white-label email hosting providers in 2025 - from established players like OpenSRS and PolarisMail to specialized cold-email infrastructure like Infraforge, all compared on branding control, pricing, and earning potential.
5 Best White Label Email Hosting Providers Overall
- Infraforge → Best for agencies/consultants needing cold email infrastructure (DNS automation, IP rotation, pre-warmed inboxes).
- Qboxmail → Great for SMB business email + calendars, with mailboxes up to 100GB.
- PolarisMail → Flexible business email hosting for resellers, mailboxes up to 200GB.
- Zoho → Ideal for transactional email, pay-as-you-go credits (10k emails per credit).
- OpenSRS → Most affordable SMB email, starting at $0.50 per mailbox/month, easy reseller setup.
Start white-label private email infrastructure with Infraforge - fully branded, ready to send.
What Is Whitelabel Email Hosting?
White-label email hosting basically lets you sell email accounts under your own brand, without worrying about the setup or tech side - it’s all handled for you.
Unlike managing servers yourself or relying on services like Google Workspace or Microsoft Exchange, the provider handles storage, security, spam filtering, and email deliverability.
Your clients only see your domain and logo, and become the provider.
Whitelabel keeps your brand front and center, creates recurring revenue, and removes the hassle of running infrastructure-making it popular with agencies, SaaS founders, and IT resellers.
Types of Whitelabel Email Hosting Providers
Not every provider is the same. They usually fall into four groups:
- Reseller / white-label hosters - These offer hosted mailbox plans, branded admin/webmail UIs, billing integration, and let you resell mailboxes under your brand.
- Infrastructure / building-block providers - They expose lower-level components (mail servers, SMTP relays, DNS control, APIs), giving you flexibility to build your own workflows or custom stack.
- Outreach / cold-email / sales tools with white-label support - Platforms built for sales outreach, sequence automation, bounce management, etc., which often offer agency branding options.
- Enterprise / high-end platforms - Solutions built for large clients or regulated industries, emphasizing compliance, high availability, SLA guarantees, advanced reporting, support, and scalability.
How Did We Evaluate the Best Whitelabel Email Hosting Providers?
To shortlist the best Whitelabel Email Hosting provider, we focused on the features that matter most when you are selling email under your own name.
We looked at:
- If the provider lets you fully rebrand everything - from webmail and login URLs to admin panels and email headers - so it looks 100% yours.
- Whether you can use your own domain for access points (like mail.yourbrand.com) instead of the provider’s domain.
- How much control do you get over pricing, plans, and mailbox sizes, to create your own tiers and profit margins?
- If they offer API and billing integrations, you can automate account creation, client management, and payments.
- Whether SPF, DKIM, and DMARC records can be set up under your brand for secure, deliverable email.
- If support and communication can run under your name, meaning your clients never see the actual provider.
The ones that made this list checked all these boxes, making them the most authentic and reseller-friendly white-label email platforms you can choose in 2025.
Quick Comparison: 5 Best White-Label Email Hosting Providers
1. Infraforge
Infraforge is an advanced private email infrastructure platform that makes scaling cold outreach easy. It’s a white-label solution that lets you resell the full backend.
That means instead of just reselling inboxes, you can resell the whole backend domains, pre-warmed mailboxes, DNS automation, and IP rotation - all under your brand.
It’s made for agencies, SaaS, and B2Bs that want to offer reliable outbound email deliverability without managing the technical aspects.
What are its White Label Capabilities
- You can run the dashboard under your own domain, so clients log in through something like mail.yourcompany.com instead of an Infraforge link.
- The whole platform gets rebranded with your logo and colors, so clients only see your brand.
- Beyond looks, you also get real backend control. That means managing DNS records, mailbox slots, IP addresses, and deliverability settings directly from your branded interface.
“I started using Infraforge a few months ago as part of our move to modernize and scale our infrastructure, and it has quickly become one of the most reliable parts of our stack.”- Infraforge user on Trustpilot
Key Features Your Users Get Under the Infraforge White-Label
- Automated setup for SPF, DKIM, and DMARC so records are correct from day one
- Bulk DNS updates and domain transferring across multiple clients
- Pre-warmed domains and inboxes are ready to send without waiting weeks
- Multi-IP provisioning and rotation to spread sending volume and protect reputation
- SSL and domain masking for a clean, branded experience
- Real-time deliverability monitoring and alerts so you know when something slips
- A full API for automation, plus compatibility with Salesforge and other outreach tools
How a Reseller Would Earn from Infraforge White Label
- Pricing for white-label hosting is custom/quote-based depending on domains, mailboxes, and scale.
- Resellers pay Infraforge’s base rates (around $70 per domain/year and $3 per mailbox/month) and rebrand the service as their own.
- By setting higher rates around $7–$10 per mailbox per month and $120–$150 per domain per year. predictable recurring profit.
- On top of this, Infraforge adds a 20% revenue share, increasing overall margins while the reseller keeps full brand ownership. Masterbox dashboard that shows all client mailboxes and emails in one place
What are the Limitations of Infraforge?
- It’s designed for cold email deliverability, not for day-to-day “business email” like Gmail or Zoho (so no calendars, file sharing, or office apps)
- Works perfectly if you’re reselling outbound email infra, but less ideal if your clients expect calendars or collaboration features.
2. Qboxmail
Qboxmail is a white-label email hosting provider for business email and collaboration.
Qboxmail gives you the full corporate suite: professional email hosting, calendars, contacts, and even Zoom integration for meetings.
It’s built for resellers and companies that want to provide branded, secure business email without running servers themselves.
What are its White Label Capabilities
- You can fully customize the Control Panel and Webmail with your own logo and company name.
- Clients can log in through a custom domain with SSL, which keeps everything branded and secure.
- You can delegate account management to collaborators or even directly to your clients while still keeping your brand front and center.
Key Features Your Users Get Under the Qboxmail White Label
- Mailboxes from 8GB to 100GB per user
- Access via standard protocols (POP, IMAP, SMTP) plus Webmail
- Built-in antivirus and antispam protection with customizable settings
- Automatic backups and email recovery in case of accidental deletion
- Full SPF, DKIM, and DMARC support for better deliverability
- API access for billing and user management automation
- New Email Delivery service for transactional and promotional emails via SMTP
- Proprietary Webmail interface with contacts, calendars, and Zoom integration
- ActiveSync support for mobile synchronization
- WHMCS module for resellers to integrate billing and provisioning
How a Reseller Would Earn from Qboxmail White Label
- Qboxmail follows a pay-per-use model - you only pay for active accounts each month. So, you can set your own margins and keep 100% of the markup.
- Qboxmail offers flexible mailbox sizes (from 8GB up to 100GB) at wholesale rates, which resellers can fully rebrand and sell under their own domain and logo.
- Income comes from setting retail pricing above Qboxmail’s base cost and charging clients monthly for professional email hosting.
- No setup fees, no long-term contracts, and volume discounts are available.
What are the Limitations of Qboxmail?
- White-label works well for the control panel and webmail, but reporting and analytics aren’t very customizable.
- Strong focus on corporate mailbox hosting, so not the best pick if your clients need cold outreach infrastructure.
- Migration tools are available, but they can feel basic compared to other providers.
Start white-label private email infrastructure with Infraforge - fully branded, ready to send.
3. PolarisMail
PolarisMail is a professional email hosting platform that also offers white-label options, that lets you offer branded email solutions without building any infrastructure you can resell without building any infrastructure.
You get everything businesses need - email, calendars, contacts, file sharing, and strong spam protection - all accessible from any device, ready to resell under your own brand.
What are its White Label Capabilities
- You can brand the Control Panel and Webmail with your own company logo and colors.
- Clients log in through a custom domain and server name so your brand stays front and center.
- Full support for WHMCS and HostBill integration, letting you automate billing and provisioning under your own name.
- You get enough control to design hybrid setups (mixing different mailbox types under one client domain) while keeping everything under your reseller brand.
Key Features Your Users Get Under the Polaris White Label
- Mailboxes ranging from 1 GB to 200 GB, including Basic, Enhanced, and OEX options
- Full-featured Webmail with calendars, contacts, tasks, chat, and even video calls
- ActiveSync and Outlook connectivity, depending on the mailbox tier
- Advanced Threat Protection for spam and virus filtering
- Automated backups with retention from 30 to 365 days
- Free email migration handled by PolarisMail’s team when moving clients over
- Group email lists, aliases, and forwards for team communication
- CalDAV / CardDAV support for shared calendars and contacts
- Integration with Zulip for advanced chat and collaboration
How a Reseller Would Earn from PolarisMail White Label
- PolarisMail provides fully branded mailbox hosting with sizes from 1GB up to 200GB, along with WHMCS integration for automated billing.
- Resellers earn by setting their own pricing tiers above PolarisMail’s base rates (pricing is available directly from their team).
What are the Limitations of PolarisMail?
- Branding is good, but deeper customizations like server names or advanced theming aren’t included by default.
- Great for mailbox hosting, but outbound deliverability features often need extra tools layered on.
4. Zoho Mail
Zoho’s (ZeptoMail) is a white-labeled transactional email platform that lets you offer a fully branded email delivery solution without building or maintaining your own infrastructure.
It handles all the backend work while you provide reliable, professional email services under your own brand.
What are its White Label Capabilities
- A custom sign-in page under your domain with your logo and colors.
- SMTP credentials, API URLs, and DNS records are rebranded, so clients see smtp.yourdomain.com instead of ZeptoMail.
- Automated system emails and notifications are sent with your brand details.
- All API docs, OAuth tokens, and client IDs are provided under your branding.
- Reverse DNS and email headers point back to your domain, not Zoho’s.
- Customer support and communication channels can be routed through your own email domain for a seamless experience.
Key Features Your Users Get Under the Zeptomail White Label
- Dashboard with segmentation (Mail Agents) for managing user accounts
- Detailed email logs, bounce reports, and suppression lists
- Pre-built templates and email template editor
- SMTP and Email API for easy integration into apps and CRMs
- Real-time open and click tracking with webhooks
- Sender address restrictions to protect against misuse
- Shared IPs with strong deliverability, plus option for dedicated IPs
- User-level permissions and activity logs for compliance
- First credit is free (10,000 emails) for testing
How a Reseller Would Earn from Zoho ZeptoMail White Label
- ZeptoMail uses a credit-based pricing model, where 10,000 transactional emails cost around $2, valid for six months, with no monthly fees or hidden charges.
- Resellers purchase credits in bulk and rebrand SMTP, API, and dashboards so clients see only their brand.
- Earnings come from setting higher retail pricing and bundling transactional delivery into SaaS or ecommerce services.
What are the Limitations of Zoho Mail (ZeptoMail)?
- White-labeling is strong, but the service is focused only on transactional email, not full email hosting.
- Dashboards and reporting leave little room to customize the client experience.
- Support is reliable but sometimes slow for resellers managing multiple accounts.
5. OpenSRS Email
OpenSRS, part of Tucows, is one of the largest reseller platforms in the world.
Alongside domains and SSL, it offers white-label professional email hosting that is affordable, reliable, and designed for SMB clients.
Unlike Infraforge (cold outreach) or Zoho ZeptoMail (transactional), OpenSRS is built for agencies, hosting providers, and website builders that want to add branded business email to their portfolio with zero infrastructure headaches.
What are its White Label Capabilities
- You can completely rebrand the webmail and control panel with your own logo, fonts, and colors.
- Notifications, account communications, and customer-facing messages are fully white-labeled.
- Choose how to deliver:
- Storefront → Sell directly from your website with a branded checkout.
- Control Panel → Manage all accounts yourself under your branding.
- API → Automate everything and embed email directly into your own UI.
- Storefront → Sell directly from your website with a branded checkout.
- Multi-language support (English, French, Spanish, German, and more) keeps the experience branded and global.
Key Features Your Users Get Under the Infraforge White Label
- Professional email starting at $0.50 per mailbox/month
- Flexible mailbox sizes from 5GB up to 100GB
- Built-in spam and virus filtering with an in-house abuse team
- Modern, intuitive webmail interface with drag-and-drop editor, spellcheck, and signatures
- Integrated calendar syncing across Outlook, Android, Gmail, MacOS, and iOS
- Mobile access via native apps with POP/IMAP support
- Directory and contact management with personal notes
- Security features like two-factor authentication, strong password policies, and Canadian data center hosting with 99.9% uptime
- APIs and plugins for WHMCS, HostBill, and ClientExec for billing automation
Pricing
- Mailbox hosting: from $0.50 per mailbox/month
- Email forwarding: $0.02 per address/month
- No setup fees, no minimums, no monthly commitments
- Wholesale pricing lets you set your own retail rates and margins, making it reseller-friendly
How a Reseller Would Earn from OpenSRS White Label
- OpenSRS offers wholesale email from $0.50 per mailbox/month, along with domains and SSL certificates in a single platform.
- Profit grows not only from mailbox markups but also from bundling domains and SSL for higher-value packages.
What are the Limitations of OpenSRS?
- White-label branding is in place, but the webmail UI feels dated compared to modern SaaS providers.
- The control panel works, but it can feel clunky when you’re managing a large number of branded clients.
- Best for reselling to SMBs, but lacks the fine-grained branding control some agencies want.
Conclusion
The power of white-label email hosting is simple - your brand stays front and center while the provider powers everything behind the scenes. Each platform delivers that in a different way:
- Infraforge: Complete white-label cold email infrastructure - resell domains, DNS, pre-warmed mailboxes, and IP rotation under your own brand.
- Qboxmail: White-labeled webmail and control panel that look entirely like your own platform.
- PolarisMail: Custom-branded dashboards and WHMCS integration for seamless reseller management.
- Zoho ZeptoMail: Transactional white-labeling for SMTP, API, and DNS, ideal for apps and SaaS.
- OpenSRS: White-label suite for email, domains, and SSL - perfect for bundling multiple services.
All five are solid choices, but Infraforge leads in giving you full control over the infrastructure itself - letting you sell complete cold email systems fully branded as your own.
Start white-label private email infrastructure with Infraforge