Heyo Infra review (2026): pricing, pros and cons, alternatives

What Heyo Infra is

Heyo Infra is software rather than a mailbox reseller. You connect your own Microsoft Azure subscription with OAuth, point your domains’ nameservers at the platform, and it creates Azure Communication Services email resources in your tenant, writes the DNS on Cloudflare, generates mailboxes in batches and hands you IMAP and SMTP credentials for your sequencer. Microsoft bills you directly for sending at about $0.25 per 1,000 emails; Heyo Infra charges a flat software fee for the slots. The company is United Lanes LLC in Lincoln, Nebraska, trading as HeyoInfra.com, and it also runs a sequencer called Heyo Email that the platform syncs to in one click. The site claims 99% primary inbox placement and savings of 85% against per-user mailbox platforms, which are its own figures.

Heyo Infra pricing

Three plans, every feature on all of them, priced by workspaces and active mailbox slots: Starter at $19 a month for 1 workspace and 50 slots, which the site maps to about 10 domains; Growth at $39 for 5 workspaces and 200 slots; and Agency at $79 for 10 workspaces and 500 slots. Microsoft’s Azure sending charge sits on top, paid to Microsoft, at about $0.25 per 1,000 emails, so 50,000 emails cost $12.50 and 200,000 cost $50. Domains come from your registrar, which the savings calculator prices at about $9 a year each. The terms describe a free setup tier on which you can connect Azure and configure unlimited domains with automated DNS; generating mailboxes needs a paid plan. The calculator’s worked example puts 50 inboxes sending 45,000 emails a month at $37.75 all in, against $307.50 for 50 Google Workspace or Microsoft 365 seats at $6 each.

Billing is monthly through Stripe, with cancellation at any time from the billing portal taking effect at the end of the period. Subscription fees are non-refundable except where the law requires. The acceptable use clauses are specific: hard bounces below 2% and complaints below 0.1% across all connected Azure resources, no scraped or unverified lists, a working unsubscribe and a postal address in every send, and the warning that Microsoft suspends domains that cross those lines.

Setup and integrations

The site’s three steps take minutes. Log in with Microsoft to link the Azure tenant, which grants Heyo Infra delegated permission to create and configure the email resources and verify domain ownership; add domains and point their nameservers at the platform, which creates SPF, DKIM, DMARC and MX records on Cloudflare and verifies them; then generate mailboxes in bulk, choosing a name format such as first.last, with secure passwords, up to 500 at a time. Every inbox gets IMAP and browser webmail for replies and verification codes. Export is a universal CSV of credentials for Instantly, Smartlead, Apollo, Lemlist and similar tools, or a one-click push into Heyo Email. Warm-up is not part of the product; the FAQ tells you to warm the inboxes over two to three weeks in your sender and to hold daily volume between 25 and 35 per inbox.

Deliverability

Mail leaves through Microsoft’s Azure network from your own tenant, which the site describes as dedicated Microsoft IPs and trusted corporate mail in the eyes of Google, Outlook and Yahoo. That is a different animal from a Microsoft 365 mailbox: there is no Microsoft admin panel, no per-user licence, and the reputation you build is attached to Azure resources and domains you own. The upside is isolation and cost; the downside is that Azure’s thresholds are unforgiving, the terms put every suspension on you, and nothing is pre-warmed. Keep lists verified, stay inside the 25-to-35-a-day guidance, and treat the first three weeks on every domain as warm-up rather than campaign time.

Who Heyo Infra is for, and who should look elsewhere

Heyo Infra suits technical founders and agencies comfortable running an Azure subscription who want hundreds of cheap Microsoft-network inboxes under their own control. It is a poor fit for teams that want official Google or Microsoft 365 accounts, a provider that owns the deliverability outcome, or any refund if it does not work out. MailDeck sells Microsoft 365 tenants of 100 inboxes for $30 to $40 a month, Infraforge and Hypertide sell private infrastructure they run themselves. The inbox provider comparison scores all of them.

Where PureMail wins, and where Heyo Infra wins

PureMail’s Google Workspace and Microsoft 365 inboxes, configured and connected by a team cost $3.30 each for 10, $3.10 for 30 to 100 and $2.90 for 101 or more, billed monthly. PureMail is not the cheaper option here on price alone, and it would be dishonest to say otherwise: 50 PureMail inboxes cost $155 a month against about $30 for Heyo Infra’s Starter plan plus Azure sending. What PureMail supplies that Heyo Infra does not is the accounts themselves, official Google Workspace and Microsoft 365 mailboxes with the reputation those tenants carry, set up and connected to your sequencer in about 4 hours, with no Azure subscription to open, no cloud bill, no nameserver change and no Cloudflare zone to maintain. Full details are on the pricing page.

Heyo Infra wins on cost and control for teams able to run their own cloud account: a flat fee, unlimited domains, batch creation in minutes, IMAP and webmail included, and infrastructure that stays in your tenant if you leave. For an agency that already lives in Azure and can police bounces and complaints, it is the cheapest route in this directory to a large Microsoft-network fleet. The table below puts the two side by side.