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About

Sendmux gives AI agents their own inbox and a controlled way to send email. Each agent can receive messages, read threads, handle attachments, send replies, and react to new mail through signed webhooks or Server-Sent Events. Teams can send through Gmail OAuth, Outlook OAuth, SMTP providers, or managed Amazon SES. Sendmux can spread sending across providers with weighted routing, sender-domain routing, health checks, failover, and quotas by second, minute, hour, or day. Developers get Mailbox, Sending, and Management APIs, OpenAPI docs, SDKs, the sendmux CLI, MCP tools, and Sendmux Skills. The platform also covers tenant isolation, mailbox-scoped API keys, custom domains, logs, metrics, and usage-based pricing with no per-seat or per-mailbox fees.

About

TextBolt lets businesses send and receive SMS from email, a web dashboard, or API: email-to-SMS alerts from tools like Datadog and Grafana, bulk SMS campaigns, scheduled messages, contact lists, and auto-replies.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

AI agent builders that need an email API for AI agents

Audience

Small businesses, clinics, service providers and teams that want to send SMS alerts and appointment reminders from email.

Support

Phone Support Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$0.15 per 1000 emails
Free Version Supported
Free Trial Not Supported

Pricing

$29/month
Basic is $29/month for 500 message credits, or $23.20/month billed annually. Standard is $49/month for 1,000 credits; Professional is $99/month for 2,500 credits. Enterprise pricing is custom for 5,000+ credits per month, starting at $0.030 per segment. An optional toll-free number costs $45/year; additional carrier charges may apply.
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Sendmux
Founded: 2026
Australia
sendmux.ai

Company Information

TextBolt
Founded: 2022
Brampton, Ontario, Canada
textbolt.com

Alternatives

EmailLabs

EmailLabs

Vercom

Alternatives

No Alternatives
SendHQ

SendHQ

Vynara Technologies
SendPost

SendPost

SendWorks

Categories

Agentic AI Supported
Email APIs Supported

Categories

Integrations

Gmail Supported
Microsoft Outlook Supported
Apple Mail Not Supported
Claude Supported
Codex CLI Supported
FetchSandbox Supported
Google Contacts Not Supported
LangChain Supported
Model Context Protocol (MCP) Supported
Python Supported
Ruby Supported
Slack Supported
Thunderbird Not Supported
Vercel AI SDK Supported
Zapier Supported
n8n Supported

Integrations

Gmail Supported
Microsoft Outlook Supported
Apple Mail Supported
Claude Not Supported
Codex CLI Not Supported
FetchSandbox Not Supported
Google Contacts Supported
LangChain Not Supported
Model Context Protocol (MCP) Not Supported
Python Not Supported
Ruby Not Supported
Slack Not Supported
Thunderbird Supported
Vercel AI SDK Not Supported
Zapier Not Supported
n8n Not Supported
Claim Sendmux and update features and information
Claim Sendmux and update features and information
Claim TextBolt and update features and information
Claim TextBolt and update features and information