# Cheap Inboxes > Cheap Inboxes provides mailbox and domain infrastructure for cold outreach teams, including Google and Microsoft inboxes, setup tools, integrations, and support. This file is a concise discovery aid for public product information. It does not grant access to private application routes, credentials, customer data, drafts, or internal documentation. The emerging llms.txt convention does not guarantee inclusion, citation, or ranking in any AI system. ## Product - [Homepage](https://www.cheapinboxes.com): Product overview, pricing, service details, and frequently asked questions. - [Inbox Calculator](https://www.cheapinboxes.com/calculator): Estimate the domains, mailboxes, and monthly mailbox cost needed for an outreach plan. - [Developers](https://www.cheapinboxes.com/developers): Public overview of the Cheap Inboxes API and MCP integrations. - [API Documentation](https://api.cheapinboxes.com/docs): Public API reference. ## Support and policies - [Support](https://www.cheapinboxes.com/#support): Public support options. - [Privacy Policy](https://www.cheapinboxes.com/privacy): Privacy practices and contact information. - [Terms of Service](https://www.cheapinboxes.com/terms): Service terms and customer responsibilities. - [Fulfillment and Refund Policy](https://www.cheapinboxes.com/fulfillment): Fulfillment, cancellation, and refund information. ## Published guides - [Email warmup tools: compare the workflow without buying the guarantee](https://www.cheapinboxes.com/blog/email-warmup-tools): Compare email warmup tools by connection, controls, reporting, pricing unit, and the evidence each workflow can actually produce. - [DMARC failing? Check alignment before you change policy](https://www.cheapinboxes.com/blog/dmarc-failing): Trace a DMARC failure through the visible From, Return-Path, and DKIM signing domains before changing the domain policy. - [Cold email deliverability: find the broken layer before you change everything](https://www.cheapinboxes.com/blog/cold-email-deliverability-diagnostic): Diagnose cold email deliverability across authentication, accounts, lists, copy, sending behavior, and measurement with one evidence packet. - [Cold email inboxes: what actually changes between providers](https://www.cheapinboxes.com/blog/cold-email-inbox-providers): Compare cold email inbox providers by mailbox model, pricing unit, domain control, setup, support, and the work left after checkout. - [Cold email infrastructure: what to build, buy, and own](https://www.cheapinboxes.com/blog/cold-email-infrastructure-checklist): Map the domains, mailboxes, DNS, sequencer, and operating work behind cold email before you choose what to build or buy. - [Premium Inboxes alternatives: what four-week billing costs per month](https://www.cheapinboxes.com/blog/premium-inboxes-alternatives): Premium Inboxes charges every four weeks. Convert that to a real calendar-month cost, then compare service, mailbox structure, and control. - [InboxKit alternatives: compare the real monthly commitment](https://www.cheapinboxes.com/blog/inboxkit-alternatives): InboxKit's lowest headline prices require annual billing. Compare its real monthly commitment, add-ons, mailbox model, and competing options. - [HyperTide alternatives: standard mailboxes vs. Azure infrastructure](https://www.cheapinboxes.com/blog/hypertide-alternatives): HyperTide's Azure and Entra model is not a standard mailbox subscription. Compare architecture, monthly cost, tenant structure, and control. - [Zapmail alternatives: what changes after the first year](https://www.cheapinboxes.com/blog/zapmail-alternatives): Compare Zapmail alternatives using its current price conflict, year-two renewal formula, mailbox-change window, and operating workflow. - [ScaledMail alternatives: choose the layer before the provider](https://www.cheapinboxes.com/blog/scaledmail-alternatives): ScaledMail spans Google, Microsoft, and SMTP. Compare the layer you actually need to replace before you shortlist another provider. - [SPF, DKIM, and DMARC for cold email: a provider-aware setup guide](https://www.cheapinboxes.com/blog/spf-dkim-dmarc-cold-email): Set up and verify SPF, DKIM, and DMARC for cold email without copying the wrong Google Workspace or Microsoft 365 DNS records. - [Infraforge alternatives: what $4 mailbox slots actually buy](https://www.cheapinboxes.com/blog/infraforge-alternatives): Compare Infraforge mailbox slots, minimums, domains, IPs, and masking with standard Google and Microsoft inbox providers. - [Inframail alternatives when unlimited inboxes are not the whole bill](https://www.cheapinboxes.com/blog/inframail-alternatives): Break down Inframail's flat-rate Microsoft-backed infrastructure, domains, support, and operating limits before comparing another provider. - [Maildoso alternatives: $0.49 SMTP is not a Google mailbox](https://www.cheapinboxes.com/blog/maildoso-alternatives): Compare Maildoso SMTP, Google, and mailbox bundles without mixing account models, billing units, support, or ownership. - [Mailforge alternatives for teams that need Google or Microsoft accounts](https://www.cheapinboxes.com/blog/mailforge-alternatives): Mailforge sells shared-infrastructure slots. Compare them with standard Google and Microsoft mailboxes, server offers, and full-stack plans. - [MailReef alternatives: server pricing versus standard mailboxes](https://www.cheapinboxes.com/blog/mailreef-alternatives): Compare MailReef's server and usage pricing with standard mailbox, shared-infrastructure, and outreach-platform alternatives. - [MailDeck alternatives: compare the architecture before the price](https://www.cheapinboxes.com/blog/maildeck-alternatives): Compare MailDeck Microsoft, private SMTP, and mixed infrastructure with standard mailbox providers without blending unlike plans or billing units. - [InfraSuite alternatives for Microsoft mailbox operations](https://www.cheapinboxes.com/blog/infrasuite-alternatives): Compare InfraSuite's Microsoft-focused operating layer with standard mailbox providers, Azure bundles, and custom infrastructure. - [SuperSend alternatives: dedicated infrastructure or standard accounts?](https://www.cheapinboxes.com/blog/supersend-alternatives): Compare SuperSend's quote-led sending infrastructure with standard Google and Microsoft mailboxes, sequencers, and server offers. - [Icemail alternatives: promotional mailbox pricing under a microscope](https://www.cheapinboxes.com/blog/icemail-alternatives): Compare Icemail promotional Google and Microsoft pricing with Azure, SMTP, support, domain structure, and standard-mailbox alternatives. ## Review - Last reviewed: 2026-07-22 - Review by: 2026-10-22 - Canonical sitemap: https://www.cheapinboxes.com/sitemap.xml