Warmy
Warmy automatically warms up mailboxes, domains and IPs through a network of real inboxes, driven by its Adeline AI engine. It also runs inbox placement tests, Google Postmaster monitoring and seed lists to keep campaigns out of spam.
What is Warmy?
Warmy is a web-based email deliverability platform published by AnyBiz LTD, a company registered in Israel. Its premise is straightforward: a new mailbox, domain or IP address has no sending reputation, and mailbox providers read sudden volume as a spam signal. Warmy raises that volume gradually by exchanging messages with a network the site says holds at least 300,000 active mailboxes — every customer who connects a mailbox joins it. Warm-up messages are generated and personalised automatically, can be themed by industry, and are archived from the inbox after twenty minutes so the mailbox stays usable.
What distinguishes the product is Adeline AI, the engine that decides each mailbox's schedule. It reads hundreds of parameters per mailbox, learns from that mailbox and from the whole network at once, and the vendor claims around twenty million decisions a day. Three functions are named: personalised warm-up plans, predictive send optimisation, and spam-risk detection on content, subject lines and sender reputation.
Several modules sit around the warm-up. Deliverability Insights tests placement across providers and reports domain reputation, DNS configuration and a health score. A Google Postmaster Tools integration pulls reputation grades and spam rates into the same dashboard. An Email Seed List of real Gmail addresses is downloaded before each campaign and added to the recipients, with Outlook announced. Two warm-up networks are kept separate, one B2B for Google Workspace and Microsoft 365, one B2C for Gmail, Yahoo and Outlook. Agencies get a console with client accounts, access levels and billing, and a documented public API lets developers embed warm-up in their own product.
A layer of free tools sits in front of all this, usable without an account: deliverability test, mailbox calculator, template checker, cold email sequencer, signature builder, SPF and DMARC generators, a Chrome extension and a video course. The company claims 35,000+ customers and 95% inbox placement — figures the terms explicitly decline to guarantee.
What it does
- Warm up mailboxes, domains and IP addresses automatically through a network of real inboxes
- Let the Adeline AI engine set each mailbox's warm-up pace, volume and schedule
- Test where messages actually land across providers — inbox, spam or promotions
- Monitor domain reputation, spam rate and authentication through Google Postmaster Tools
- Add a seed list of real addresses to a campaign before sending it
- Flag emails at risk of filtering, based on content, subject line and sender reputation
- Generate and check SPF and DMARC records, signatures and email templates
When to use Warmy / When not to
A quick filter to help you decide if Warmy is the right fit.
When to use Warmy
- Outbound sales teams — SDRs, BDRs and account executives — running cold email at volume
- Email and lifecycle marketers whose campaigns keep landing in spam or the Promotions tab
- Email agencies managing deliverability for several clients, who need shared access and central billing
- Founders and growth leads launching a brand-new domain or mailbox with no sending history
- Product and engineering teams embedding warm-up into their own tool through the API
When not to use Warmy
- Consumers and personal senders: the terms restrict the service to business and professional use
- Anyone under 16, which is the stated minimum age
- Buyers who want transparent self-serve pricing, since no amount is published and every plan routes to a sales call
- Teams looking for a permanently free product, as the platform itself is paid-subscription only
- Senders expecting a guaranteed outcome: the terms disclaim any promise on placement, reputation or open rates
How to use Warmy
A typical end-to-end flow, from setup to results.
- Sign up in the Warmy app and start the 7-day trial, no credit card required
- Connect a mailbox through Google, Microsoft or any IMAP/SMTP provider — the site claims a 25-second setup
- Pick the warm-up network that matches your audience: B2B or B2C
- Set the mailbox temperature, meaning the daily volume to reach and the ramp-up period
- Choose the topic of the warm-up emails so they match your industry
- Check SPF, DKIM and DMARC records, using the free generators if the DNS part is unfamiliar
- Connect Google Postmaster Tools so reputation grades and spam rates feed the dashboard
- Run a placement test and read the inbox, spam and promotions breakdown provider by provider
- Download the seed list before each campaign and add it to your recipient list
- Track results in the dashboard and keep warming up — the FAQ advises at least two months on a brand-new domain
Pros & Cons
Pros
- Warm-up runs on its own, with an AI engine setting the pace instead of daily manual tuning
- Works with almost any provider: Gmail, Google Workspace, Outlook, Microsoft 365, Zoho, Yahoo, SendGrid, Amazon SES, Mailgun and any IMAP/SMTP account
- Separate B2B and B2C warm-up networks, so the mailboxes engaging match the audience actually targeted
- Unlimited mailboxes can be synced to one account, according to the FAQ
- Native Google Postmaster Tools integration, which is uncommon in this category
- 7-day trial without a credit card, and cancellation advertised as available at any time
- Documented public API plus a broad set of free tools — SPF and DMARC generators, placement test, sequencer — usable without an account
Cons
- No public pricing whatsoever: all three plans show volume-based pricing and a single Book a Demo button
- No permanent free plan, and the trial converts automatically into a paid subscription unless cancelled first
- Commercially harsh terms: no refunds of any kind, and liability capped at the lesser of three months of fees or US$100
- Cancellation must be requested at least five business days before the renewal date
- Thin corporate transparency: no postal address, no legal notice page, and two different legal names across the terms and the privacy policy
- No Data Processing Agreement, no subprocessor list, no Article 27 EU representative and no hosting country disclosed
- Providing a phone number counts as consent to automated calls and texts with no limit on time of day or frequency, and disputes fall under Israeli law with class actions and jury trial waived
Pricing & Plans
There is no permanent free plan: the terms state that the services are offered on a paid subscription basis. A 7-day free trial is available without a credit card, limited to one mailbox, one user and 15 to 50 emails per day. No price is published anywhere on the site — each of the three plans is described as volume-based and routes to a demo booking — so no entry price and no currency can be quoted. Billing is monthly or annual and renews automatically at the then-current rate. Accepted payment methods are PayPal, credit card, bank transfer and cryptocurrency.
- B2B sender (Reach Businesses) — warm-up through a network of professional mailboxes such as Google Workspace and Microsoft 365. Volume-based pricing
- Google Postmaster integration
- deliverability monitor and a dedicated deliverability expert. Price on request.
- B2C sender (Reach Consumers) — warm-up through a network of consumer mailboxes such as Gmail
- Yahoo and Outlook. Same inclusions as the B2B plan. Price on request.
- Custom plan (Custom Solution) — a plan shaped with the deliverability experts
- adding a dedicated customer success manager to the inclusions above. Price on request.
- 7-day free trial
- common to all plans
- with no credit card required.
Data, GDPR & hosting
A consolidated view of how Warmy handles your data.
GDPR overview
GDPR coverage is real but partial. The privacy policy, last updated in April 2026, names its legal bases — contractual necessity, consent, legitimate interests and legal obligation — and the cookie policy, published as a GDPR-compliant version, cites the applicable article for each cookie category. A consent banner offers accept all, reject non-essential or customise, and consent can be withdrawn at any time. Data subject rights are listed (access, rectification, erasure, restriction, portability, objection, withdrawal of consent), exercised at the published privacy address, with a stated right to complain to a supervisory authority. Transfers outside the EEA rely on Standard Contractual Clauses, and the policy notes that Israel holds a European Commission adequacy decision. What is missing is contractual: no Data Processing Agreement, no published subprocessor list, no Article 27 EU representative and no named DPO.
Who owns the data?
Under the terms, the customer keeps all right, title and interest in their User Data — the contacts, calendar data and mailbox content synced with the platform. In exchange, Warmy takes a worldwide, non-exclusive, royalty-free and sublicensable licence to host, store, copy, transmit, process, modify and display that data, limited to four purposes: running, securing and improving the service; fighting fraud and abuse; complying with the law; and producing aggregated, de-identified analytics. Those aggregated analytics may then be used for any lawful purpose, product development included, and the licence survives termination. Separately, any feedback a customer submits becomes Warmy's to exploit perpetually, worldwide and without compensation.
Reuse rights
Customers stay free to use and reuse their own data without asking Warmy for permission, and may request an export by email within thirty days of termination; after that window Warmy may delete everything. Two limits frame this. First, the customer warrants holding every right and consent required under GDPR, CCPA/CPRA, CAN-SPAM and CASL for the data they connect or upload. Second, the licence granted on the platform itself is narrow — limited, revocable, non-exclusive, non-transferable, for internal business use only and for the duration of the subscription. The terms expressly forbid using the service to compile a database, train a machine-learning model, or build a competing or substantially similar product. Seed-list addresses, by contrast, are meant to be downloaded and dropped into the customer's own campaigns.
Data retention & training
Hosting summary
Warmy does not disclose where customer data is hosted. The privacy policy lists cloud hosting providers such as AWS among its service providers, but names no country and no region. It states that personal data may be transferred and processed outside the European Economic Area, protected by Standard Contractual Clauses, contractual obligations and security measures, and notes that Israel holds a European Commission adequacy decision. The cookie policy adds that some analytics and marketing partners process data outside the EEA, including in the United States. The publisher is registered in Israel, and the terms place any dispute under Israeli law before the courts of the Tel Aviv-Jaffa district. Payments run through Stripe and PayPal, and full card numbers are not stored on Warmy's servers. The security measures cited are encryption, access control, network protections, secure cloud infrastructure, monitoring and auditing, and a SOC 2 badge appears in the footer with no report or trust page behind it. One caveat: the resolved IP address belongs to an Amazon CloudFront edge node, which indicates a content delivery point of presence, not a hosting jurisdiction.
Things to keep in mind
Risks and trade-offs to weigh before adopting Warmy.
- Warmy sends and receives from your real mailbox using your credentials, which means deep access to business correspondence
- Warm-up messages leave from your own address, so it is your domain reputation that is being staked on the process
- Warm-up manufactures artificial engagement; misused, it can dress up unsolicited bulk sending, which the terms forbid but the technique makes possible
- Provider policies at Google and Microsoft can change, and a practice that works today may put a domain at risk tomorrow
- Automatic renewal combined with a no-refund clause: missing the five-business-day cancellation window costs a full billing cycle
- Aggregated de-identified data may be used for any lawful purpose and survives termination, while an account left dormant for twelve months may be deleted without notice
- The tool creates a dependency: the FAQ advises never stopping warm-up, since reputation decays once the engagement signals stop
Setup & Integrations
Technical difficulty
Low for the core product. Signing up and connecting a mailbox is essentially the whole setup — through Google, Microsoft or any IMAP/SMTP account — and the site claims twenty-five seconds. The optional steps are more technical: publishing SPF, DKIM and DMARC records in the domain's DNS, and sharing Google Postmaster Tools access. Free generators are provided for the DNS part, and every plan includes a dedicated deliverability expert. Only the API demands real work, since it needs development effort and a key issued after a call with the vendor.
Deployment
Integrations
Behind Warmy
Social
Resources
All the official URLs gathered for verification and reference.
Frequently asked questions
What does email warm-up actually do?
Is there a free trial, and is a credit card required?
Is there a permanent free plan?
How much does Warmy cost?
Which email providers can I connect?
How long should a mailbox be warmed up?
Will warm-up emails clutter my inbox?
Who owns the data, and can I get it back?
Is there an API and a mobile app?
Should you pick Warmy?
Warmy is a focused, mature tool rather than a generalist one. The domain dates back to early 2021, the platform is actively developed, and the functional coverage of its niche is unusually complete: automated warm-up, placement testing, seed lists, Google Postmaster integration, an agency console, a public API and a whole shelf of free utilities. The Adeline AI engine and the separation of B2B and B2C warm-up networks are genuine differentiators, and the range of supported mailbox providers means almost nobody is locked out.
The reservations are commercial and contractual rather than technical. Nothing about the price is public: all three plans lead to a sales call, which rules out any quick self-serve comparison. The terms are notably one-sided — automatic renewal, no refunds under any circumstance, liability capped at one hundred dollars, Israeli law and Tel Aviv-Jaffa courts, class actions and jury trial waived, and a phone number treated as consent to automated calls. Corporate transparency is thin too: no postal address anywhere, no legal notice page, and two different legal names across the terms and the privacy policy. On data protection, the website-side groundwork is real — legal bases, Standard Contractual Clauses, granular consent, data subject rights — but the customer-side paperwork is missing, with no DPA, no subprocessor list and no hosting country disclosed. A SOC 2 badge sits in the footer with no report behind it.
For a team that sends cold email or high-volume campaigns, accepts a sales cycle and reads the contract before signing, Warmy addresses a real and expensive problem with credible tooling. For anyone who wants to compare prices in five minutes and start alone, it will feel closed.
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