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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

Manage customer support and communication directly from Slack. Collaborate effectively on shared emails like support@your.domain without sharing passwords among team members. SharedInbox connects to any email you currently use. You can also get an @in.sharedinbox.co email you can setup forwarding to. Just hit the command SharedInbox /compose and send emails to anyone. On any email thread, Just hit Reply Mail. Each incoming or outgoing email creates a new Slack Message Thread, easily tag teammates and discuss. Every account comes with a support site your users can send and manage their support requests from. No new installation or application required. Use a tool your team is already familiar with Slack. Know when your email is delivered and when it is opened. See files and pictures attached to your emails directly in Slack. Create a custom signature to attach to your emails. Set a custom message that is automatically sent once you get an email.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

AI agent builders that need an email API for AI agents

Audience

Companies requiring a solution to manage customer support and communication directly from Slack

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$0.15 per 1000 emails
Free Version
Free Trial

Pricing

$5 per month
Free Version
Free Trial

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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Sendmux
Founded: 2026
Australia
sendmux.ai

Company Information

SharedInbox
Founded: 2018
India
sharedinbox.co

Alternatives

EmailLabs

EmailLabs

Vercom

Alternatives

SharedBox

SharedBox

Everygood
Spark Mail

Spark Mail

Readdle
SendPost

SendPost

SendWorks
Mail360

Mail360

Zoho
Embed-bot

Embed-bot

Musbahdev Software Services

Categories

Categories

Integrations

Gmail
Google Cloud Platform
Microsoft Outlook
Model Context Protocol (MCP)
Slack
Yahoo! Mail

Integrations

Gmail
Google Cloud Platform
Microsoft Outlook
Model Context Protocol (MCP)
Slack
Yahoo! Mail
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