Trunk VS Sendmux
Compare Trunk VS Sendmux, what is the difference between Trunk and Sendmux?
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Summarize
Trunk summarize
Trunk is the CI Reliability Platform designed to eliminate the hidden tax of an unreliable pipeline. By automating flaky test management and providing an intelligent merge queue, we help engineering teams at companies like Zillow, Faire, and Brex save thousands of hours and ship code with confidence.
Trunk Landing Page
Sendmux summarize
Sendmux Landing Page
Compare Details
Trunk details
| Categories | AI Developer Tools, AI Assistant, AI Agent, AI Testing |
| Trunk Website | https://trunk.io?utm_source=toolify |
| Added Time | October 09 2025 |
| Trunk Pricing | -- |
Sendmux details
| Categories | AI Developer Tools, AI Workflow, AI Email Assistant |
| Sendmux Website | https://sendmux.ai?utm_source=toolify |
| Added Time | June 30 2026 |
| Sendmux Pricing | -- |
Comparison of usage
How to use Trunk?
To use Trunk, users typically integrate it with their existing CI/CD pipelines and development tools such as GitHub, Slack, Linear, and Jira. Once integrated, Trunk automatically begins to detect, quarantine, and manage flaky tests, analyze CI failures, and can be configured to use its intelligent merge queue. Users interact with Trunk through PR comments, Slack notifications, and dedicated dashboards to monitor CI health and address issues, leveraging AI for root cause analysis and automated fixes.
How to use Sendmux?
Create a Sendmux team, then create an agent mailbox using the included myagent.mx domain or a verified custom domain. Connect SMTP, Gmail OAuth, Outlook OAuth, or managed Amazon SES for outbound sending. Generate team-level or mailbox-scoped API keys, then use the API, SDKs, CLI, MCP, or Sendmux Skills to send, receive, route, and monitor email. Subscribe to webhooks or Server-Sent Events to watch live inbox and delivery events.
Compare Pros between Trunk and Sendmux
Core features of Trunk
- Automated Flaky Test Management (Detect, quarantine, eliminate)
- Intelligent Merge Queue (Protect mainline branch, hyper-efficient)
- AI-powered CI Failure Analysis & Debugging (Root cause, inline annotations, Slack notifications)
- CI Autopilot (Automatically fix CI failures, stacked PRs)
Core features of Sendmux
- Email inbox API for AI agents
- Dedicated agent mailboxes
- Multi-provider email sending
- Managed Amazon SES sending
- Per-provider quotas and throttling
- Weighted routing and failover
- Signed webhooks and SSE events
- Mailbox API for threads and attachments
- MCP, SDKs, CLI, and Sendmux Skills
- Usage-based pricing with no mailbox fees
Compare Use Cases
Use cases for Trunk
- Improving CI reliability and performance by eliminating flaky tests.
- Automating the detection and fixing of CI failures to reduce debugging time.
- Streamlining code merging with an intelligent merge queue to protect mainline branches.
- Saving engineering hours by reducing manual test management and incident response time.
- Bringing industry-leading DevOps best practices to engineering teams of all sizes.
Use cases for Sendmux
- AI customer support agents with real inboxes
- Sales and outreach agents using customer-owned providers
- Scheduling and executive-assistant agents
- Research and monitoring agents that process email updates
- Ops, finance, and vendor workflow agents
- Multi-tenant SaaS platforms needing isolated mailboxes
- Automation agencies managing client email workflows
- Internal tools that need webhook-driven email automation
Different Plan between Trunk and Sendmux
Trunk
$0 / committer/month
Free for OSS and teams up to 5. Includes up to 5 Repo Committers and up to 5M Test Spans per Month. Features include Flaky Tests (up to 5 committers, quarantining, PR comments, 1M test spans per committer), Code Quality (CLI/VS Code usage, inline annotations), CI Autopilot (root-cause analysis, stacked PRs, MCP access), Security (data encryption, US data residency, SOC 2 Type 2), Management (SSO Google + Microsoft + GitHub), and Community Support.
$18 / committer/month
Everything in Free, plus: +1M Test Spans per Committer, Unlimited Committers, and Onboarding Support. Adds Merge Queue (GitHub integration, multi-CI support, parallelism controls, Slack notifications), Admin tools, Advanced authentication controls, Priority Email Support.
Custom
Everything in Team, plus: Slack Connect Support, Custom Billing, Custom Payment Terms, SSO, SAML. Includes Unlimited Test Spans, Custom Slack Connect Support Channel, Customizations (Custom Billing, Early Access to new products/features, Feature Prioritization, Custom Integrations).
Sendmux
Standard Email | $0.15 / 1,000 messages | Managed Amazon SES Sending | $0.25 / 1,000 message
1000 emails
Trunk's traffic
Trunk is the one with 34.6K monthly visits and 00:00:32 Avg.visit duration. Trunk has a Page per visit of 1.61 and a bounce rate of 39.80%.
Visit Over Time
| Monthly Visits | 34.6K |
| Avg·visit Duration | 00:00:32 |
| Page per Visit | 1.61 |
| Bounce Rate | 39.80% |
Sendmux's traffic
Sendmux is the one with 0 monthly visits and 00:00:00 Avg.visit duration. Sendmux has a Page per visit of 0.00 and a bounce rate of 0.00%.
Visit Over Time
| Monthly Visits | 0 |
| Avg·visit Duration | 00:00:00 |
| Page per Visit | 0.00 |
| Bounce Rate | 0.00% |
Geography
The top 5 countries/regions for Trunk are:United States 23.00%, Thailand 8.82%, Canada 7.17%, Russia 7.07%, Vietnam 6.39%
Top 5 Countries/regions
 | 23.00% |
 | 8.82% |
 | 7.17% |
 | 7.07% |
 | 6.39% |
Geography
Sorry, there are no data
Traffic Sources
The 6 main sources of traffic to Trunk are:Direct 56.75%, Referrals 16.20%, vs_sourcesSearchOrganic 13.94%, vs_sourcesSocialOrganic 7.12%, Mail 4.75%, vs_sourcesSearchPaid 1.25%, vs_sourcesGenAi 0.00%, vs_sourcesAffiliate 0.00%, vs_sourcesDisplayAds 0.00%, vs_sourcesSocialPaid 0.00%
Direct | 56.75% |
Referrals | 16.20% |
vs_sourcesSearchOrganic | 13.94% |
vs_sourcesSocialOrganic | 7.12% |
Mail | 4.75% |
vs_sourcesSearchPaid | 1.25% |
vs_sourcesGenAi | 0.00% |
vs_sourcesAffiliate | 0.00% |
vs_sourcesDisplayAds | 0.00% |
vs_sourcesSocialPaid | 0.00% |
Traffic Sources
The 6 main sources of traffic to Sendmux are:Mail 0, vs_sourcesGenAi 0, Direct 0, vs_sourcesAffiliate 0, Referrals 0, vs_sourcesDisplayAds 0, vs_sourcesSearchPaid 0, vs_sourcesSocialPaid 0, vs_sourcesSearchOrganic 0, vs_sourcesSocialOrganic 0
Mail | 0 |
vs_sourcesGenAi | 0 |
Direct | 0 |
vs_sourcesAffiliate | 0 |
Referrals | 0 |
vs_sourcesDisplayAds | 0 |
vs_sourcesSearchPaid | 0 |
vs_sourcesSocialPaid | 0 |
vs_sourcesSearchOrganic | 0 |
vs_sourcesSocialOrganic | 0 |
Which is better: Trunk or Sendmux?
Trunk might be a bit more popular than Sendmux.As you can see, Trunk has 34.6K monthly visits, while Sendmux has 0 monthly visits. So more people choose Trunk. So the odds are that people will recommend Trunk more on social platforms.
Trunk has an Avg.visit duration of 00:00:32, while Sendmux has an Avg.visit duration of 00:00:00. Also, Trunk has a page per visit of 1.61 and a Bounce Rate of 39.80%. Sendmux has a page per visit of 0.00 and a Bounce Rate of 0.00%.
The main users of Trunk are United States, Thailand, Canada, Russia, Vietnam, with the following distribution: 23.00%, 8.82%, 7.17%, 7.07%, 6.39%.
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