Buy cold email inboxes without the DNS headache
ScaledInboxes helps outbound teams launch clean Google Workspace and Outlook inbox infrastructure without manually configuring every domain, SPF, DKIM, DMARC, and sequencer connection.
target launch window once requirements are clear
Outlook inboxes included per domain package
Google Workspace for quality, Microsoft 365 for scale
Plan infrastructure by usable sending capacity.
Cheap inboxes get expensive when DNS is wrong, replacements are unclear, or campaigns sit blocked. Price the system, not just the mailbox.
- Best for low-cost scale
- Useful for provider diversification
- Requires conservative send limits
- Best for Gmail-heavy audiences
- Higher-quality lane for valuable accounts
- Use controlled ramp-up, not brute force
Setup quality
SPF, DKIM, DMARC, MX, forwarding, and sequencer connection need to be right before volume starts.
True cost
Warmup time, replacement policy, support, and DNS mistakes change the real cost per usable inbox.
Best fit
Built for operators who want managed infrastructure and fast human help across multiple campaigns.
How to choose the right inbox setup
Use the provider mix as a portfolio decision. One lane gives simplicity. Two lanes give resilience.
Use Google Workspace when
- Your prospects are Gmail-heavy.
- Placement quality matters more than lowest unit cost.
- You are running smaller, higher-value campaigns.
Use Microsoft 365 when
- You need lower-cost scale.
- You want provider diversification.
- You can spread volume conservatively across many inboxes.
Common questions
How many inboxes do I need?
Start conservative. Use the calculator to map daily send goals into inbox count, domain count, and provider mix.
Should I use Google Workspace or Microsoft 365?
Google is stronger for Gmail-heavy audiences. Microsoft 365 can lower cost and diversify infrastructure. Serious operators often use both.
What matters more than price?
DNS accuracy, send limits, replacement policy, support speed, and domain isolation matter more than saving a few cents per inbox.
Need this sized for a real campaign?
Send daily volume, number of campaigns or clients, provider preference, and sequencer. We’ll map inboxes, domains, and monthly cost.