AgentMail gives agents an inbox. Truncus gives agents execution certainty. Different layers. Complementary infrastructure.
Your Agent
AgentMail
Create inbox, manage threads, receive replies
Truncus
Execute sends, return a definitive result, handle failures
AWS SES Ireland
eu-west-1 — sending
EU Frankfurt
data residency
Different strengths for different layers. Where we don't compete, we say so.
| Capability | Truncus | AgentMail |
|---|---|---|
| Category | Execution layer | Inbox system |
| Core job | Execute sends, return a definitive result | Manage email conversations |
| Synchronous delivery confirmation | Yes (send_sync) | No |
| Delivery guarantees | best_effort / at_least_once / exactly_once | No |
| Global message identity | Yes (across retries/providers) | No |
| Content-based deduplication | Yes | No |
| Pre-send validation + confidence scoring | Yes | No |
| Post-send intelligence | Failure explanations + actions | No |
| Account reputation engine | Auto-throttle/suspend | Unknown |
| Kill switch | Yes | No |
| Governance (monitor/enforce/block) | Yes | No |
| Sandbox + event replay | Yes | No |
| Programmatic inbox creation | No | Yes |
| Two-way conversations | Coming soon | Yes (native) |
| Thread management | No | Yes |
| Agent identity layer | No | Yes |
| MCP server | 8 tools | Yes |
| CLI | @vanmoose/truncus-cli | No |
| EU data residency | EU default — AWS SES Ireland (eu-west-1) | No |
| Pricing | Free (3K), $19 Pro, $99 Scale | Free (3 inboxes), $20 Dev, $100 Startup |
Prices shown in USD for comparison. Truncus bills in euros: €19 Pro, €99 Scale (same numbers).
Comparison based on publicly available information as of March 2026. AgentMail is a trademark of AgentMail Inc.
Your agent needs an inbox:
Your agent needs execution certainty:
Reliable delivery for conversations:
“AgentMail decides what to say. Truncus makes sure it arrives.”
Truncus and AgentMail are complementary infrastructure. We build the execution layer. They build the inbox layer. Together, agents get reliable, governed email communication.
Try Truncus free — 3,000 emails/month