Warmy

Warmy is an email warmup and deliverability platform for senders trying to build or repair mailbox reputation. The official accessible docs clearly describe a 7-day trial with one connected mailbox and limited daily seed emails. Paid pricing was not exposed in the crawled official pricing docs, so this profile avoids quoting third-party price claims.

At an early stage the deciding factors are what the free tier actually covers, what the first paid invoice looks like, and how much of a founding engineer's week the setup costs. Feature depth that only matters at a million sends a month is noise until it is not.

Against a waitlist, a launch announcement, onboarding email, and the first transactional sends, Warmy covers developer experience and scheduling, and does not cover SDK breadth and webhook coverage. Whether that gap matters depends on how central those are to the build.

• Free tier: 7-day trial, no credit card, 1 mailbox, 15 to 50 seed emails/day
• Best published rate per 1,000: Tiers not published in comparable form
• Starts at: Paid plan pricing is not exposed in accessible official pricing docs
• DX score: 6/10
• Deliverability: Not a sender. Warmup tools can create positive engagement signals, but they do not fix poor consent, bad lists, weak authentication, or irrelevant content.
• Operating since: Not published
• Scheduling: Yes
• SDKs: None
• Webhooks: No

Not a sender. Warmup tools can create positive engagement signals, but they do not fix poor consent, bad lists, weak authentication, or irrelevant content.

Outbound teams evaluating a warmup workflow before scaling sender accounts.

Teams with poor list quality or authentication problems that need root-cause fixes first.