ScaledMail

Inbox infra

Managed multi-ESP packages mixing Google, Outlook, and SMTP with white-glove Slack setup.

The verdict

ScaledMail sits in a useful middle pole between white-glove done-for-you Google and cheap SMTP. Operator chatter in 2026 is mixed, so test in parallel before you cut over.

Do not blind-migrate a working fleet onto it.

Read the verdict before you buy. Skip anything that only looks good in a demo.

Best for

Teams that want one vendor spanning Google Workspace, Outlook, and SMTP with human setup help.

Not for

Pure self-serve API shops, or buyers who need rock-solid public proof of infra ownership.

Pricing truth

Google Workspace is $3.50 per mailbox per month. Microsoft is $50 per domain per month for 25 mailboxes. SMTP is $3.75 per domain per month for 4 mailboxes. Checked 13 Sep 2026.

When we use it

Buy one managed vendor that spans Google, Outlook, and SMTP packages.
Get white-glove Slack setup without building three separate infra stacks.
Sit in the middle-cost pole between premium polish and DIY API provisioning.
Skip when recent reply-rate A/Bs fail against other managed peers on the same list.

How to wire it

Set daily and monthly volume, then mix Google, Outlook, and SMTP in the calculator.
Wait 24 to 72 hours for DNS and mailboxes, then connect sequencer OAuth or SMTP.
Turn on optional reporting add-ons per ESP only after you model the cost, and open the Slack support channel.
A/B against other managed inbox vendors on the same offer before a full cutover.

Margin notes

Never blind-cutover. Reddit 2026 threads reported reply collapses versus peers.
Outlook density math is $50 per domain, about $2 per mailbox at 25 mailboxes.
Reporting add-ons can rival base cost. Model optional toggles before you enable them.
Cap sends at vendor daily limits (Google Workspace 25, others 10).
Keep crown domains on direct Google or Microsoft control.