head to head
MailReach vs TrulyInbox
Per-mailbox warmup and spam testing versus warmup priced by daily email volume.
What matters for teams building autonomous agents
An agent stack treats email as a two-way primitive. Inbound has to arrive as structured JSON a tool call can consume, sends have to be safe to retry when a model loop repeats itself, and every action needs an audit trail. A provider without inbound parsing only solves half the problem.
| Priority | MailReach | TrulyInbox |
|---|---|---|
| Inbound parsing | No | No |
| Idempotency keys | No | No |
| Webhooks | Yes | No |
| Operating since | Not published | Not published |
| Event stream | Yes | Yes |
| Best published rate per 1,000 | Tiers not published in comparable form | Tiers not published in comparable form |
| Batch sending | No | No |
| SDKs | None | None |
| Multi-tenant | Yes | Yes |
For an agent that reads and writes email running inbound parsing into tool calls and model-generated sends that must not duplicate, MailReach takes every priority that separates them here (webhook coverage), while TrulyInbox matches it on the rest. That ordering reflects this audience. Weigh the same table differently and the answer changes.
Side by side
| Feature | MailReach | TrulyInbox |
|---|---|---|
| Webhooks | Yes | No |
| SDKs | None | None |
| Multi-tenant | Yes | Yes |
| Tagline | Email warmup plus spam testing for outbound teams. | Warmup priced by daily emails instead of connected accounts. |
| Free tier | No permanent free plan published | Free forever for 1 account and 10 warmup emails/day |
| Starts at | $19.50/mailbox/mo shown in the published pricing calculator | $29/mo monthly, or $22/mo billed annually for Starter |
| Pricing model | tiered | tiered |
| API | No | No |
| SMTP | No | No |
| Templates | none | none |
| React Email | No | No |
| Inbound | No | No |
| Idempotency | No | No |
| Dedicated IP | No | No |
| Deliverability | Not a sender. Helps monitor mailbox reputation, warmup behavior, blacklist status, SPF, DKIM, DMARC, and inbox placement test results. | Not a sender. Tracks warmup behavior, deliverability score, account health, and ESP-level analytics on higher tiers. |
| DX score | 7/10 | 7/10 |
| Best for | B2B outbound teams that want warmup, spam testing, and reputation tracking in one product. | Teams that manage many sender accounts but want one shared warmup volume pool. |
MailReach
pros
- ›Warmup and spam testing are bundled
- ›Works with common mailbox and ESP setups that support SMTP
- ›Includes domain and inbox health checks
- ›Agency pricing path exists
cons
- ›No permanent free plan is published
- ›Per-mailbox pricing can scale quickly for outreach teams
- ›Warmup does not fix poor targeting or bad list acquisition
TrulyInbox
pros
- ›Free forever plan for one account
- ›Paid plans allow unlimited connected accounts
- ›Pricing by daily warmup volume is easier for multi-account teams to model
- ›7-day trial on paid plans
cons
- ›API access is listed as coming soon, not currently available
- ›Warmup volume is still capped by plan
- ›Warmup is not a substitute for permission-based sending