# Warmup Inbox > Email warm-up through a network of real inboxes, priced per inbox Warmup Inbox handles warm-up: it sends and replies to emails between your mailbox and a network of more than 30,000 real inboxes, which reply to a share of them, so a new address or domain builds a sending reputation. It also warms dedicated IPs and email platforms such as SendGrid and Amazon SES, and includes simple outreach sequences. It does not clean lists or manage DMARC. Plans are priced per inbox. - **Category:** Email Verification & Deliverability - **Made by:** CyberPanda s. r. o. - **Website:** https://www.warmupinbox.com - **Runs on:** Web - **Facts last checked:** Oct 18, 2026 ## Pricing Warmup Inbox is a paid product with a free trial, starting at $15 per inbox / month, billed annually ($19 monthly). - **Pricing model:** Free trial - **Free plan:** None. - **Free trial:** 7-day free trial of any plan, no credit card required. | Plan | Price | What you get | | --- | --- | --- | | Basic | $15 per inbox / month, billed annually ($19 monthly) | 75 warm-up messages a day, reply rate up to 25%, spam and category monitoring, outreach sequences and the API. The per-inbox price falls as inboxes are added. | | Pro | $49 per inbox / month, billed annually ($59 monthly) | 250 warm-up messages a day, replies up to 45%, your own templates and topics, language and email-platform warm-up, and scheduling. | | Max | $79 per inbox / month, billed annually ($99 monthly) | 1,000 warm-up messages a day, replies up to 50%, a technical setup check, premium support and unlimited API use. | | 51+ inboxes | Custom | Quoted pricing with multi-client workspaces, consolidated billing, specialized reports and dedicated onboarding. | Read from https://www.warmupinbox.com/pricing/ on Oct 18, 2026. Prices change, so confirm with Warmup Inbox before buying. ## Ways to pay less - **Save 20% with annual billing** (Annual discount): Annual plans are billed once for 12 months: Basic is $15 per inbox a month billed annually against $19 billed monthly. Source: https://www.warmupinbox.com/pricing/ ## Key features - **Warm-up network:** Your mailbox exchanges AI-written emails with more than 30,000 real inboxes, which reply to up to 25% to 50% of them depending on the plan. - **Spam and category monitoring:** Dashboards show whether warm-up emails land in spam or in a category tab, plus an email reputation check. - **Language and ESP warm-up:** On Pro and Max, warm up in other languages and through sending platforms such as SendGrid and Amazon SES, with custom templates and topics. - **IP warm-up:** Warms a dedicated sending IP before volume is raised. - **Outreach sequences:** Basic cold email sequences are included, so a warmed inbox can send campaigns from the same account. - **API and free tools:** A developer API on every plan, plus free placement tests, blacklist checks and DMARC and SPF record generators. ## Good for - Cold emailers setting up new mailboxes and domains - Agencies warming many client inboxes from one dashboard - Senders on SendGrid or Amazon SES who need to warm a domain or IP ## Worth knowing - Pricing is per inbox, so costs grow with each mailbox; volume discounts start from the second inbox. - Language warm-up, email-platform warm-up and custom templates need Pro or above. - It does not verify lists or manage DMARC; DMARC help is limited to a free record generator. ## ToolGPA grades **GPA: 2.4 out of 4**, graded Oct 18, 2026. Warmup Inbox swaps emails between your mailbox and a network of more than 30,000 real inboxes, so a new address builds a reputation before you send. At $15 an inbox a month billed yearly, it's the cheapest warm-up here. Language and email-platform warm-up need the $49 Pro plan, and there's no list cleaning or DMARC. - **Value for money: B.** Basic is $15 an inbox a month billed yearly ($19 monthly), and the price per inbox falls as you add more. That's the cheapest among its listed warm-up rivals: MailReach is $20 a mailbox, Warmy starts at $49 and InboxAlly at $149. - **Free plan and trial: C.** No free plan, but a 7-day trial of any plan with no card. Fine for a look around; after that you pay for each inbox. - **Features: C.** It does warm-up fully: more than 30,000 real inboxes replying to 25% to 50% of your emails by plan, spam and tab monitoring, IP warm-up and simple outreach sequences. No list cleaning or DMARC, though, and language and SES or SendGrid warm-up need Pro. - **Ease of use: C.** No App Store rating on record. You connect each mailbox and leave it running before you send, and the settings you'll want, your own templates and topics, sit on Pro. - **Platforms and integrations: B.** Web with an API on every plan, working with Gmail, Google Workspace, Outlook, Microsoft 365, Amazon SES, SendGrid and Zoho Mail. No phone or desktop app. These are ToolGPA's own grades. Graded from this listing, whose facts were read from Warmup Inbox's own pages on 18 October 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among email verification and deliverability tools - Warmup Inbox's GPA of 2.4 is higher than 6 of the 15 other email verification and deliverability tools we grade, and level with 8. - It stands best on value for money (B, above 13 of 15) and worst on features (C, above 0). - Its paid plans start at $15 a month, against a middle price of $28 for the category: 0 of the 7 others that charge start lower. - On features, ease of use and platforms it scores 2.3 out of 4, and no tool on the category's chart scores higher without costing more. The category's chart of price against score: https://toolgpa.com/charts/email-deliverability ## Keep it, or make your own? **Keep it.** To replace Warmup Inbox you would be making a network of real inboxes that open and answer your emails. That is not a weekend's work, with an AI app builder or without one. It costs $180 a year. - You could not: A network of real inboxes that open and answer your emails. - You could not: Newsletters sent to thousands of people that still reach the inbox. - You could not: It plugs into other products, Gmail, Google Workspace and Outlook among them, and has an API. - You could not: AI features, unless you pay a model provider for each request yourself. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with Gmail, Google Workspace, Outlook, Microsoft 365, Amazon SES, SendGrid, Zoho Mail **Tags:** Inbox warm-up, Email campaigns, AI features, Public API ## Alternatives - [MailReach](https://toolgpa.com/tools/mailreach): Email warm-up and inbox placement tests, priced per mailbox. [Compare](https://toolgpa.com/compare/mailreach-vs-warmup-inbox) - [Warmy](https://toolgpa.com/tools/warmy): Email warm-up with seed testing, verification and DMARC monitoring. [Compare](https://toolgpa.com/compare/warmup-inbox-vs-warmy) - [InboxAlly](https://toolgpa.com/tools/inboxally): Email warm-up and reputation repair through a network of seed inboxes. [Compare](https://toolgpa.com/compare/inboxally-vs-warmup-inbox) - [GlockApps](https://toolgpa.com/tools/glockapps): Inbox placement testing with DMARC analytics and uptime monitoring. [Compare](https://toolgpa.com/compare/glockapps-vs-warmup-inbox) ## Sources The prices, plans, platforms and features above were read from these pages on Oct 18, 2026: - https://www.warmupinbox.com/pricing/ - https://www.warmupinbox.com/ Page: https://toolgpa.com/tools/warmup-inbox Listed by ToolGPA (toolgpa.com).