Cheap Inboxes alternatives

Zapmail

$39/mo API

Why it comes up: Similar Google/Microsoft reseller from $39/mo for 10 inboxes.

Stands out: Pre-warmed US/EU Google and Microsoft mailboxes with automated DNS and OAuth export to sequencers.

Watch out: API access starts on Pro at $299/mo. Extra Google mailboxes cost $3.50 each on Starter.

Best for

• Freelancers starting with 10 Google inboxes
• Agencies that want pre-warmed Workspace accounts
• Teams exporting to Instantly or Smartlead

Read the Zapmail write-up · Cheap Inboxes vs Zapmail

Hypertide

$3.30/inbox/mo API

Why it comes up: Google inboxes at $3.30 with no tiered volume table.

Stands out: Flat $3.30 per Google inbox, no packages, plus Entra domains at $25 with 25 inboxes included.

Watch out: No free trial. Entra is the volume SKU; Google is per inbox. Month-to-month, cancel in the app.

Best for

• Teams that want one Google inbox or ten thousand at the same rate
• Agencies buying Entra domains at $25 for 25 inboxes
• Senders exporting over OAuth or SMTP to Instantly or Smartlead

Read the Hypertide write-up · Cheap Inboxes vs Hypertide

Primeforge

$4.50/mailbox/mo API

Why it comes up: Forge-stack Google and Microsoft slots from $4.50 yearly.

Stands out: US-IP Google and Microsoft mailboxes so you can match the ESP your prospects use.

Watch out: Minimum 10 mailbox slots. No free trial. Yearly billing is the $4.50 rate; monthly is higher.

Best for

• Teams that want real Google or Microsoft inboxes
• Senders using ESP matching for inbox placement
• Shops automating setup through the Primeforge API

Read the Primeforge write-up · Cheap Inboxes vs Primeforge

InboxKit

$2.50/mailbox/mo API

Why it comes up: Google and Microsoft from $2.50/mailbox on annual wallet billing.

Stands out: Each domain gets its own isolated admin panel, so one damaged domain does not drag the others down. A full REST API with webhooks lets agencies provision mailboxes automatically when a new client signs, and an Azure option covers up to 100 mailboxes for $30 a month.

Watch out: Warmup is not included: it is a $3 per mailbox a month add-on, more than the annual mailbox price itself. The $2.50 rate needs annual billing, and there is no free trial, though you can start with a single mailbox. The 90%+ inbox placement figure is the vendor's own claim.

Best for

• Agency recruiters sending cold email to hiring managers at volume
• Teams already sequencing in Instantly, Smartlead, Lemlist or Apollo
• Teams that want to automate mailbox setup through an API

Read the InboxKit write-up · Cheap Inboxes vs InboxKit