TrulyInbox

TrulyInbox is an email warmup platform that prices by daily warmup emails rather than charging per connected account on paid plans. That model is attractive for teams managing many low-volume sender accounts, provided the daily warmup pool fits the workload.

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, TrulyInbox 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: Free forever for 1 account and 10 warmup emails/day
• Best published rate per 1,000: Tiers not published in comparable form
• Starts at: $29/mo monthly, or $22/mo billed annually for Starter
• DX score: 7/10
• Deliverability: Not a sender. Tracks warmup behavior, deliverability score, account health, and ESP-level analytics on higher tiers.
• Operating since: Not published
• Scheduling: Yes
• SDKs: None
• Webhooks: No

Not a sender. Tracks warmup behavior, deliverability score, account health, and ESP-level analytics on higher tiers.

Teams that manage many sender accounts but want one shared warmup volume pool.

Teams that need a deliverability API today.