Too many places to check
Microsoft 365, DNS providers, sending tools, and your own notes all hold part of the picture.
TenantCore gives you one place to run the infrastructure behind your outbound operation from setup through monitoring.
See the operation in one place
See capacity, status, and what needs attention
3 / 3
slots in use
15
ready
41
ready to use
1,025
sends per day
Everything is up to date
3 tenants connected · 0 issues
Add tenant slots
Add space when you need it
Add domain
Get another domain ready
Create mailbox
Add mailboxes to a ready domain
Sending limits
Set how much each mailbox can send
Tenant overview
Domain counts, mailbox totals, DNS, and status
Built and managed through TenantCore
300+
Mailboxes created with TenantCore
170+
Domains managed
A few domains and mailboxes are easy to track. As you add more, the work spreads across Microsoft 365, DNS providers, sending tools, passwords, and spreadsheets.
Microsoft 365, DNS providers, sending tools, and your own notes all hold part of the picture.
Passwords, MFA, Outlook access, send limits, and connection status all matter when you need to use a mailbox.
When something changes, you need to know what broke, what it affects, and what to do next.
When someone asks what changed or how the infrastructure is performing, you need a report you can hand over without rebuilding the story by hand.
When a domain, mailbox, or sending location runs into trouble, you need enough history and context to isolate the impact and get the operation back on track.
The hard part is keeping it all together. TenantCore brings the work into one place so you do not have to piece it together each time.
Keep your sending tool. TenantCore gives you one place to set up, manage, and watch the infrastructure around it.
Get domains ready, create mailboxes, and set send limits with one clear process.
See domain setupKeep mailbox access, passwords, MFA, send limits, and sending-tool links in one place.
See mailboxesSee when infrastructure status, sending location, or reputation changes, then go to the item that needs attention.
See monitoringAdd more tenants, domains, and mailboxes while keeping the current state and history easy to see.
See reportsTenantCore keeps the current state in one place, so you can decide what to do next without checking several tools.
Domains
Know which domains are ready for mailboxes, which are still in setup, and which need your help.
See domains →Domains
Your campaigns stay in your sending tool. TenantCore manages the infrastructure behind your mailboxes and automates DNS where supported.
Sending tools
Use your mailboxes with any sending tool that supports Microsoft OAuth, with direct integrations available for a more automated connection flow.
Instantly
PlusVibe
Smartlead
ManyReach
You can still connect other Microsoft-compatible sending tools manually.
See sending toolsDNS automation
Configure supported DNS automatically. Use guided manual DNS with any other provider.
Porkbun
Cloudflare
Namecheap
Every paid plan gives you the same room to run outbound infrastructure. Upgrade when you want TenantCore to automate more of the setup, monitoring, reporting, and integrations.
3
tenant slots
12
domains in each environment
36
mailboxes in each environment
25/day
configurable limit per mailbox
Paid plans start with 3 tenant slots. Each environment follows the same repeatable structure: 12 domains and 36 mailboxes. Add more tenant slots whenever you need more environments.
Run your outbound infrastructure from one place.
Automate the repetitive setup and monitoring.
Connect TenantCore to the rest of your operation.
Ready to scale further?
Additional tenant slots cost $5/month each. Microsoft 365, domains, and sending tools are billed separately.
06 / FAQ
Here are the basics. See the full FAQ when you want more detail.
See the full FAQStart with one environment. Keep domains, mailboxes, sending-tool connections, and infrastructure status in one place.