GTM Tech Stack

Scaledmail vs Zapmail · which cold email inbox seller to pick

Notes from GTM teamsWritten by people who run outboundWe use the tools we recommend.

Both companies sell the inboxes you send cold email from. Each inbox is a real Google Workspace or Microsoft mailbox on a spare domain. If something goes wrong, your main company domain stays safe. Both companies set up SPF, DKIM and DMARC for you. Those are three DNS records, which are settings on your domain. They tell Gmail and Outlook that your mail really comes from you.

our pick

Pick Zapmail if you can set up and watch your own inboxes and want Google inboxes in minutes. Pick Scaledmail if you want a team to build and watch your inboxes for you, or if you also need SMTP inboxes.

ScaledMailZapmail
How it worksScaledmail's team builds your setup by hand and keeps watching it after launch. Setup takes 24 to 72 hours.Zapmail is self-serve. You pick a plan, buy domains in the dashboard and connect the inboxes to your sequencer. Zapmail says this takes about 5 minutes.
Google inboxesGoogle Workspace is $3.50 per inbox a month, with 2 to 3 inboxes per domain and up to 25 emails per inbox a day.Starter is $39 a month with 10 Google inboxes. Growth is $99 a month with 30. Pro is $299 a month with 100.
Extra inboxesEach extra Google inbox is $3.50 a month.Extra inboxes cost $3.50, $3.25 or $3.00 each, depending on the plan. On yearly billing, Pro extras drop to $2.50 per inbox, which is Zapmail's lowest price.
Microsoft and SMTPMicrosoft Outlook is $50 per domain a month for 25 inboxes. SMTP inboxes run on plain mail servers from other providers, and they cost $3.75 per domain a month for 4 inboxes.Zapmail sells Microsoft 365 mailboxes too. On yearly billing it's $32.50 a month for 10, $82.50 for 30 and $250 for 100. Extras are $3.25, $2.75 and $2.50. Zapmail doesn't sell SMTP inboxes.
DomainsEvery package includes domain registration, DNS setup, ongoing deliverability monitoring and a shared Slack channel with their team.You buy domains on top, and a .com domain costs $13.
Pre-warmedScaledmail sells pre-aged, pre-warmed domains that skip the usual two-week warmup. It doesn't list a price for them. Otherwise, warmup runs in your sequencer, and Scaledmail suggests about two weeks before you send more.Zapmail sells pre-warmed inboxes as a separate set of plans. Warmup means sending small, safe batches of mail so new inboxes look normal before you send cold email from them. Starter is $39 for the first month, then $24 a month, for 3 inboxes and 1 domain. Growth is $149, then $84 a month, for 12 inboxes and 4 domains. Pro is $339, then $180 a month, for 30 inboxes and 10 domains.
Cost of 30 Google inboxesThe math: 30 inboxes × $3.50 = $105 a month, with domains included. The optional reporting add-on is $2 per inbox, so 30 × $2 = $60 more if you want it.The math: Growth is $99 a month for 30 Google inboxes. Domains cost extra, at $13 per .com.
Emails a day from 30 inboxesThe math: at Scaledmail's limit of 25 emails per inbox a day, 30 inboxes × 25 = 750 emails a day.The same 30 inboxes at 25 emails a day also send 750 a day.
A bigger setupScaledmail's example of 2,000 emails a day, split across Google, Outlook and SMTP, costs $397.75 a month before reporting.Each plan includes a few free deliverability test credits a month.
  • Pick Zapmail if you'll set up your own Google inboxes from a dashboard.
  • Pick Scaledmail if you want a team to build your inboxes and keep watching them.
  • Pick Scaledmail if you need SMTP inboxes as well as Google and Microsoft.
  • At 30 Google inboxes, Zapmail is $99 a month and Scaledmail is $105.

Pick ScaledMail if

  • Pick Scaledmail if nobody on your team wants to own deliverability. Deliverability means whether your mail lands in the inbox or in spam.
  • Pick Scaledmail if you want Google, Outlook and SMTP inboxes from one seller.

Pick Zapmail if

  • Pick Zapmail if you already run a sequencer and you're happy to set things up from a dashboard. A sequencer is the tool that sends your email steps over several days.
  • Pick Zapmail if you want the lowest price per Google inbox at 100 or more inboxes.
Which one is cheaper for 30 Google inboxes?▾

The base prices are close. Zapmail Growth is $99 a month, plus $13 for each .com domain. Scaledmail is $105 a month with domains included.

How many Google inboxes do I need?▾

Count how many emails you want to send each day. Divide that number by 25 to get your Google inbox count.

What do SPF, DKIM and DMARC do?▾

They are three DNS records, which are settings on your domain. They tell Gmail and Outlook that your mail really comes from you. Both companies set them up for you.

what to do next

Count how many emails you want to send each day. Divide that number by 25 to get your Google inbox count. If you'll set it up yourself, start with Zapmail. Get Zapmail inboxes If you want a team to set it up and watch it, start with Scaledmail. Build a Scaledmail package Prices come from Zapmail's plans, Zapmail's FAQ for the $13 .com, and Scaledmail's pricing, checked October 9, 2026.