The mailbox bill, rewritten
Our own sending platform for cold outreach. Dedicated IPs, DNS written for you, from $1.00 a mailbox a month.
Dedicated IPs, because reputation is not shareable
On a shared pool one careless sender drags your placement down with them, and you never find out why. InfraOptimal sells dedicated IPs only, so the sending history attached to your mailboxes is the history you created. We check every IP against the major blocklists daily and keep reverse DNS matched to your sending domain.
Under half the price of a Workspace seat
Google and Microsoft charge an office productivity licence for a mailbox you only use to send. We charge for sending. At 100 mailboxes that is roughly $100 a month against $400 plus domain fees, and crossing a volume tier lowers the rate on every mailbox you already run.
DNS you never have to open
Buy a domain in-app or point one you already own at us. SPF, DKIM, DMARC, MX, SSL and tracking records are written, verified and re-checked for you, then warmup ramps each mailbox before the first campaign step goes out.
- API and webhooks for provisioning at scale
Portable mailboxes, one inbox
Every mailbox comes with standard SMTP and IMAP credentials, so it runs in Instantly, Smartlead or whatever you send with today. Keep it inside MailOptimal and sender rotation, unlimited warmup and the unified inbox are already wired up.
- Standard SMTP and IMAP credentials on every mailbox
- Sender rotation across your whole estate
- Replies land in the MailOptimal unified inbox
Work out your number
Pick a mailbox count and billing cycle. The rate drops as you cross each volume tier, and applies to every mailbox you run.
Up to 5 mailboxes per domain and 3 recommended. Bring your own domains or buy them in-app from $8 a year. Extra dedicated IPs are $50 a month. The Google and Microsoft line uses the $4 per mailbox we charge for provisioned Workspace and 365 mailboxes, before domain fees.
| Volume tier | Per mailbox / mo |
| 1-10 mailboxes | $2.00 |
| 11-50 mailboxes | $1.90 |
| 51-200 mailboxes | $1.80 |
| 200+ mailboxes | $1.70 |
| 500+ mailboxes | $1.60 |
Against the alternatives
Full side by side on the InfraOptimal vs Google and Microsoft page. Or see InfraOptimal against Infraforge, Mailforge, Mailpool, Mailreef, Maildoso, Scaledmail and every provider at once.
| InfraOptimalOwn your reputation | Google & MicrosoftSmall, named-account mail | AzureCheapest at huge volume | |
|---|---|---|---|
| Sending IP | Dedicated | Shared pool | Shared pool |
| Price per mailbox | $2 → $1 | $4 flat | $0.50 |
| 100 mailboxes / mo | $100 | $400 + domains | $50 |
| Per-seat licence | None | Per mailbox | None |
| Time to first send | Minutes | Hours to days | Hours |
| SMTP / IMAP access | Yes | Yes | Yes |
What is InfraOptimal?
Is the IP really dedicated?
How does this compare to Google Workspace or Microsoft 365?
Is there a minimum?
Do I need my own domains?
Can I use these mailboxes with other tools?
How fast can I start sending?
Own the IP you send from
Dedicated IPs, DNS handled, warmup running, from $1.00 per mailbox a month.