Cold Email Infrastructure on Microsoft Azure.
Connect your single Microsoft account, add your domains, and deploy ready-to-send inboxes at wholesale sending rates ($0.25 per 1,000 emails).
Works with any cold email sender:
Dedicated Microsoft IPs · Instant Automated DNS · Inbound Webmail Included
Built for Modern Outbound Infrastructure
Everything you need to automate sending domains, generate inboxes, and eliminate reseller markups.
Automated Cold Email Inboxes Powered by Microsoft
Heyo Infra is the easy control panel for your outbound email infrastructure.
Instead of paying massive reseller markups or wasting hours copying DNS records, Heyo Infra connects to your Microsoft account and builds fully authenticated, ready-to-send cold email inboxes in seconds.
Your Microsoft Azure
Wholesale ($0.25/1k)Ready-to-Send Inboxes For
Heyo Email · Smartlead · InstantlyEverything You Need to Scale Outbound
Engineered for seamless deliverability, instant setup, and zero reseller markups.
1-Click Microsoft Connection
Connect your Microsoft account in seconds. Heyo Infra configures your dedicated email environment automatically—no complex cloud configuration required.
Microsoft Azure Connected
Dedicated Tenant ContainerSPF & DKIM CNAMEs
Cloudflare VerifiedDMARC & Inbound MX
Protected PolicyZero-Touch DNS Setup
Just point your domain nameservers to us. We automatically configure and verify your SPF, DKIM, DMARC, and MX records so your emails land in the primary inbox.
Rapid Batch Mailbox Creation
Need 20 inboxes across 5 domains? Choose your name format (first.last, first, etc.) and generate all of them with secure passwords in one click.
Built on Trusted Microsoft Networks
Your emails send directly through Microsoft's core business network. Recipient servers at Google, Outlook, and Yahoo recognize your emails as trusted corporate mail.
Inbound Storage & Webmail Access
Every inbox comes with IMAP and browser-based webmail. Check incoming replies, grab confirmation codes, or let your cold email sender handle replies automatically.
“We'd love to book a demo call! What does your schedule look like?”
Received via Dovecot IMAP1-Click Sync to Cold Email Senders
Export your mailboxes in a universal CSV for Smartlead or Instantly—or push them straight into Heyo Email with a single click.
Ready to Send in 3 Simple Steps
From zero to fully configured, ready-to-send mailboxes in minutes.
Connect Microsoft
Log in with your Microsoft account to link your dedicated private sending environment.
Add Your Domains
Point your domain nameservers to us. We handle 100% of the DNS records and authentication behind the scenes.
Generate & Send
Create up to 500 mailboxes in bulk, sync them to your cold email sender, and launch your campaigns.
How Much You Save Every Month
See the exact monthly savings of flat slot software pricing and Microsoft wholesale sending compared to traditional $6/mo per-user platforms.
See how much you save with Heyo Infra
Google Workspace / M365
$6.00 / user / mo
Heyo InfraYou save $269.75 every single month.
Simple Pricing
All plans include every single feature. Only pay for the mailbox slots you need.
For solo founders and lean outbound teams.
- 1 Workspace
- 50 Active Mailbox Slots (~10 domains)
- Wholesale sending rates ($0.25 per 1k sends via Microsoft)
- 1-Click Microsoft account connection
- Automated DNS, SPF, DKIM & MX setup
- Multi-domain batch mailbox creation
- Inbound IMAP & webmail access
- Universal CSV export (Instantly, Smartlead, Apollo, etc.)
- 1-Click direct sync to Heyo Email
For scaling sales teams and B2B growth agencies.
- Up to 5 Workspaces
- 200 Active Mailbox Slots (~40 domains)
- Wholesale sending rates ($0.25 per 1k sends via Microsoft)
- 1-Click Microsoft account connection
- Automated DNS, SPF, DKIM & MX setup
- Multi-domain batch mailbox creation
- Inbound IMAP & webmail access
- Universal CSV export (Instantly, Smartlead, Apollo, etc.)
- 1-Click direct sync to Heyo Email
For high-volume lead generation agencies.
- Up to 10 Workspaces
- 500 Active Mailbox Slots (~100 domains)
- Wholesale sending rates ($0.25 per 1k sends via Microsoft)
- 1-Click Microsoft account connection
- Automated DNS, SPF, DKIM & MX setup
- Multi-domain batch mailbox creation
- Inbound IMAP & webmail access
- Universal CSV export (Instantly, Smartlead, Apollo, etc.)
- 1-Click direct sync to Heyo Email
Everything You Need to Know
What is Heyo Infra?
Heyo Infra is a simple platform that sets up and manages dedicated cold email inboxes using your own Microsoft account. You get clean, private infrastructure without dealing with manual DNS setups or paying high reseller prices.
How are the prices so low?
Traditional tools charge $3 to $6 per inbox by marking up basic server costs. Heyo Infra charges a flat software fee of $19 to $79/month to manage the setup, and you pay Microsoft directly at their wholesale sending rate ($0.25 per 1,000 emails).
Do I need technical skills to use this?
No. You don't need to touch code or edit DNS records. Just log in with Microsoft, point your domain nameservers, and Heyo Infra configures everything automatically.
What are the Microsoft sending costs?
Microsoft charges a flat $0.25 per 1,000 sent emails. If you send 50,000 emails in a month, your bill from Microsoft is $12.50. If you send 200,000 emails, it's $50.00.
Can I use these inboxes with my cold email sender?
Yes. You can download a universal CSV with your IMAP/SMTP credentials to upload into Instantly, Smartlead, Apollo, or Lemlist. If you use Heyo Email, you can push inboxes directly with 1 click.
Do I get webmail to check my emails?
Yes. Every inbox includes browser-based webmail access so you can easily view replies or click verification links.
How do I keep my Microsoft sending account safe?
Clean your lead lists before sending to keep hard bounce rates under 2%, warm up your inboxes over 2 to 3 weeks, and keep daily volume between 25 and 35 emails per inbox.
Ready to Cut Your Inbox Costs by 85%?
Deploy dedicated cold email inboxes on Microsoft infrastructure in minutes.
No long-term contracts · Fast 1-click setup · Cancel anytime