TenantCore is the better fit when you want to keep Microsoft 365 under your control and manage the infrastructure lifecycle yourself from one place. InfraSuite focuses on delivering ready-to-use Outlook mailboxes with DNS, warmup configuration, and sending-tool import handled for you.
Quick comparison
TenantCore is the better fit when you want to keep Microsoft 365 under your control and manage the infrastructure lifecycle yourself from one place. InfraSuite focuses on delivering ready-to-use Outlook mailboxes with DNS, warmup configuration, and sending-tool import handled for you.
You want to operate the Microsoft 365 environments behind your outbound infrastructure instead of purchasing mailbox bundles. You want limits, alerts, reports, Outlook access, DNS status, and connection status to stay visible after setup. You want infrastructure management to remain independent from the provider supplying the mailboxes.
You want Microsoft 365 mailboxes provisioned for you with DNS already configured. A per-domain package with many mailboxes is the way you prefer to buy infrastructure. You want warmup configuration and mailbox imports handled as part of fulfillment.
Where TenantCore fits
You want to operate the Microsoft 365 environments behind your outbound infrastructure instead of purchasing mailbox bundles.
You want limits, alerts, reports, Outlook access, DNS status, and connection status to stay visible after setup.
You want infrastructure management to remain independent from the provider supplying the mailboxes.
Side by side
The important difference is not how many boxes each product can check. It is what you own, what the provider supplies, and what stays under your control as you scale.
Operating model
TenantCore
Operate connected Microsoft 365 environments and keep the surrounding infrastructure workflow in one place.
InfraSuite
Provision ready-to-use Microsoft 365 mailboxes as managed outbound infrastructure.
Mailbox model
TenantCore
Create and manage mailboxes inside the Microsoft 365 environments connected to TenantCore.
InfraSuite
Current public offer packages Microsoft 365 mailboxes by domain.
DNS
TenantCore
Automatic DNS with supported providers or guided manual setup elsewhere.
InfraSuite
Complete DNS setup is included with its provisioned mailbox infrastructure.
Sending tools
TenantCore
Keep your sending tool and manage supported direct connections from TenantCore.
InfraSuite
Provides mailbox importing into tools such as Instantly, Smartlead, EmailBison, and PlusVibe.
Ongoing operations
TenantCore
Daily limits, access, infrastructure status, sending reputation, alerts, and Reports are part of the product workflow.
InfraSuite
Public positioning focuses on mailbox provisioning, DNS, warmup configuration, importing, and infrastructure stability.
Where InfraSuite may fit better
InfraSuite is not being treated as a bad product here. These are the situations where its current public model may match what you want more closely.
You want Microsoft 365 mailboxes provisioned for you with DNS already configured.
A per-domain package with many mailboxes is the way you prefer to buy infrastructure.
You want warmup configuration and mailbox imports handled as part of fulfillment.
Frequently asked
No. Your campaigns stay in the sending tool you already use. TenantCore manages the Microsoft 365 infrastructure behind the mailboxes and keeps supported connection status visible in one place.
No. TenantCore is designed to connect to Microsoft 365 environments you control. A separate managed-tenant option is available when you want TenantCore to supply the environment instead.
When the goal is to keep Microsoft 365 under your control while reducing repeated work across domains, mailboxes, DNS, sending limits, sending-tool connections, monitoring, alerts, and reporting.
Bring domains, mailboxes, DNS, daily limits, sending-tool connections, alerts, and reports into one operating workflow as you scale.