# Warmforge review (2026): is it worth $10 a month? > Email warmup and inbox placement tests from the Salesforge team Checked Nov 12, 2026 ยท graded Nov 12, 2026 by ToolGPA. Warmforge warms up mailboxes with AI-written messages that mimic human replies, and monitors each mailbox's health. Customers buy mailbox slots, each covering one connected mailbox. Separate placement test subscriptions show delivery rates at providers such as Google and Outlook. Salesforge subscribers get unlimited slots. - **Category:** Email Verification & Deliverability - **Made by:** Forge Ecosystem - **Website:** https://www.warmforge.ai - **Runs on:** Web - **Who should skip it:** Not for you if you want to try warmup free first, since there is no trial. - **Facts last checked:** Nov 12, 2026 ## Pricing As of Nov 12, 2026, Warmforge is a paid product, starting at $10 per mailbox slot / month, billed quarterly. - **Pricing model:** Paid - **Free plan:** None. - **Free trial:** None listed. | Plan | Price | What you get | | --- | --- | --- | | Email warm up | $10 per mailbox slot / month, billed quarterly ($30 per quarter) | Includes automated AI warmup, 1 free placement test a month, and health checks of DNS and MX records and blacklist status. The page also offers monthly and annual billing. | | Placement tests Pro | $32.5 per month, billed annually ($39 billed monthly) | 100 tests a month, 50 mailboxes per test. | | Placement tests Growth | $140.8 per month, billed annually ($169 billed monthly) | Unlimited tests, 250 mailboxes per test. | Read from https://www.warmforge.ai/pricing on Nov 12, 2026. Prices change, so confirm with Warmforge before buying. ## Ways to pay less - **Annual billing: 2 months free** (Annual discount): The FAQ says choosing annual billing for mailboxes gives a discount of 2 months free. Source: https://www.warmforge.ai/pricing ## Key features - **Automated warmup:** AI-written emails exchanged to build trust with mailbox providers, started with one click. - **Mailbox slots:** Each slot covers one connected mailbox, and slots can be reassigned between mailboxes. - **Placement tests:** Sends from your mailbox to addresses at different providers to show delivery rates for Google, Outlook and others. - **Health checks:** Checks DNS and MX records and scans blacklists for every connected mailbox. ## Good for - Cold outreach teams running several mailboxes - Salesforge customers, who get unlimited slots - Teams that want warmup and placement tests together ## Worth knowing - There is no free trial; mailbox slots must be bought to warm up, though you can sign up and run a free placement test. - Placement test plans are sold separately from warmup slots, apart from 1 free test a month. - If you buy fewer slots than mailboxes, the tool warms from the top of the list and disables the rest. - The page says annual billing on mailboxes gives 2 months free, with no discount on domains. ## ToolGPA grades **GPA: 2.0 out of 4**, graded Nov 12, 2026. Warmforge warms up mailboxes with AI-written messages and checks each one's health, charging per mailbox slot. Placement tests that show delivery at Google and Outlook are sold as a separate subscription. There is no trial and no free plan, so you pay before you see it work on your own mailbox. - **Value for money: B.** $10 per mailbox slot a month, billed quarterly, is at the bottom edge of what this category charges. It is per mailbox though: one pays $30 a quarter, five pay $150. - **Free plan and trial: D.** No free plan and no trial. The only free thing is 1 placement test a month once you sign up, and warming a mailbox needs a paid slot. - **Features: C.** Automated warmup, health checks of DNS, MX and blacklists, and placement tests. The tests are priced separately, and with too few slots it warms only from the top of your list and disables the rest. - **Ease of use: C.** A web app where you connect each mailbox and set up warmup. No rating on record, and the listing shows mailboxes to connect and DNS to check. - **Platforms and integrations: C.** Web only. The one integration on record is Salesforge, whose subscribers get unlimited slots. These are ToolGPA's own grades. Graded from this listing, whose facts were read from Warmforge's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among email verification and deliverability tools - Warmforge's GPA of 2.0 is higher than 4 of the 38 other email verification and deliverability tools we grade, and level with 7. - It stands best on value for money (B, above 25 of 38) and worst on free plan and trial (D, above 3). - Its paid plans start at $10 a month, against a middle price of $17.49 for the category: 5 of the 25 others that charge start lower. - On features, ease of use and platforms it scores 2.0 out of 4. 5 tools score higher and cost less. The category's chart of price against score: https://toolgpa.com/charts/email-deliverability ## Keep it, or make your own? **Keep it.** To replace Warmforge 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. That makes this kind of software worth paying for, not this one in particular: 27 of the 38 other email verification and deliverability tools grade higher. It costs $120 a year. - You could make: Reports: an app builder makes this well. - You could not: A network of real inboxes that open and answer your emails. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with Salesforge **Tags:** Inbox warm-up, Reports ## Alternatives - [Mailwarm](https://toolgpa.com/tools/mailwarm): Email warmup service with deliverability guidance. [Compare](https://toolgpa.com/compare/mailwarm-vs-warmforge) - [Warmup Inbox](https://toolgpa.com/tools/warmup-inbox): Email warm-up through a network of real inboxes, priced per inbox. [Compare](https://toolgpa.com/compare/warmforge-vs-warmup-inbox) - [MailReach](https://toolgpa.com/tools/mailreach): Email warm-up and inbox placement tests, priced per mailbox. [Compare](https://toolgpa.com/compare/mailreach-vs-warmforge) - [Warmy](https://toolgpa.com/tools/warmy): Email warm-up with seed testing, verification and DMARC monitoring. [Compare](https://toolgpa.com/compare/warmforge-vs-warmy) - [TrulyInbox](https://toolgpa.com/tools/trulyinbox): Email warmup priced by warmup emails sent, not by mailbox. [Compare](https://toolgpa.com/compare/trulyinbox-vs-warmforge) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 12, 2026: - https://www.warmforge.ai/pricing Page: https://toolgpa.com/tools/warmforge Listed by ToolGPA (toolgpa.com).