Sales · Outbound and sales engagement
Mailin.ai
Bulk cold email inboxes and domains with automated DNS set-up
At a glance
Mailin.ai provides cold email infrastructure. It sets up private inboxes and domains with the correct DNS records and connects them to sequencing tools, at volumes in the hundreds of inboxes.
- Category
- Outbound and sales engagement
- Best fit
- SME · Mid-market · Enterprise
- Pricing
- See pricing below
- In Adam’s stack
- Yes
Who Mailin.ai is best for
Outbound agencies and high-volume senders who need hundreds of Google, Microsoft or SMTP inboxes provisioned at once. It makes sense once you have outgrown setting up a handful of inboxes manually and want sending kept off your main domain.
Key features
- Bulk inbox and domain provisioning
- Automatic SPF, DKIM and DMARC set-up
- Connects to sending platforms
- Priced per mailbox on bulk plans
Why it’s worth it
It removes the manual work of setting up dozens of sending inboxes. It suits high-volume testing that you want kept well away from your main brand.
Things to consider
- Plans are sold in large blocks of inboxes, so it is poor value for a small team that only needs a few sending accounts.
- It is infrastructure only: you still need a separate sequencing tool, lead data and copy.
- High-volume sending from secondary inboxes still needs careful warm-up and list hygiene to protect deliverability.
Mailin.ai pricing
Cost (ex GST), verified by Adam
Bulk plans include 200 to 1,000 inboxes, working out from about ≈A$1.72 per mailbox (US$1.20). Extra inboxes ≈A$1.43 each. 20% off annual.
Source: Salesforge directory. Checked 1 October 2026. Prices change often, so confirm on the vendor’s site before you buy.
Alternatives to Mailin.ai
Other tools listed under Outbound and sales engagement. Tools from Adam’s stack are marked.
Instantly
In Adam’s stackCold email at volume with mailbox warm-up
SMEMid-marketEnterprise sales engagement and forecasting
Mid-marketEnterpriseCadences, coaching and deal management for larger teams
Mid-marketEnterpriseApollo.io
In Adam’s stackContact database, enrichment and sequencing in one
SMEMid-marketPersonalised cold email and LinkedIn outreach
SMECold email with unlimited mailboxes and warm-up
SMEMid-marketMultichannel sequences with AI assistance
SMEMid-marketHubSpot
In Adam’s stackAll-in-one CRM with free tier; easiest to start on and grow with
SMEMid-marketEnterpriseSimple cold email for small teams
SME
FAQ
Mailin.ai: common questions
What is Mailin.ai used for?
Mailin.ai is used to create large numbers of cold email inboxes and domains, with DNS records configured automatically, ready to connect to a cold email sending tool.
Which inbox types does Mailin.ai support?
It manages Google, Microsoft and SMTP inboxes from one platform, and existing domains can be transferred in.
Is Mailin.ai suitable for a small business?
Usually not. Its plans start at hundreds of inboxes, so it suits agencies and high-volume outbound programs rather than a business sending a modest number of cold emails.
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