Average Ratings 2 Ratings

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Average Ratings 0 Ratings

Total
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Description

With the #1 trusted email verification and all in one deliverability solution, you can test, monitor, and optimize your email programs to reach more people and increase your ROI. Get actionable insights to improve your opt-in email list health, reduce bounces, protect the reputation of your sender, and reach more high quality subscribers. Connect our real-time API to any website that collects email addresses online to prevent missed opportunities and increase your email ROI. Hard bounces caused by invalid, mistyped or fake email addresses can be virtually eliminated. Monitor your sending domains for blocklistings. You can quickly respond to potential problems with real-time alerts. This tool allows you to determine whether your message is being delivered to the inbox or spam by different mailbox providers such as Gmail, Outlook, and iCloud. Before you send an email, make sure to check for spam filtering issues and content errors.

Description

Sendmux provides AI agents with dedicated inboxes and a streamlined method for sending emails. Each agent is capable of receiving communications, reviewing conversation threads, managing attachments, replying to messages, and reacting to incoming mail through signed webhooks or Server-Sent Events. Teams can utilize various sending methods including Gmail OAuth, Outlook OAuth, SMTP providers, or managed Amazon SES, allowing for flexibility in their email communications. Additionally, Sendmux offers the ability to distribute sending across different providers using features like weighted routing, sender-domain routing, health checks, failover mechanisms, and customizable quotas based on time intervals such as seconds, minutes, hours, or days. For developers, the platform includes Mailbox, Sending, and Management APIs, comprehensive OpenAPI documentation, SDKs, the sendmux CLI, and MCP tools, along with Sendmux Skills. Moreover, the system ensures tenant isolation, provides mailbox-scoped API keys, supports custom domains, and includes logging and metrics, all while maintaining a usage-based pricing model without imposing fees for each seat or mailbox. This comprehensive approach enhances the overall email management experience for teams and developers alike.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Zapier Yes 
Abacum Yes 
CanopyDeploy Yes 
Causal Yes 
Claude No 
FetchSandbox No 
Gmail No 
LangChain No 
Mailster Yes 
Model Context Protocol (MCP) No 
PriMailer Yes 
Python No 
Ruby No 
Slack No 
Stackreaction Yes 
Vercel AI SDK No 
Workers by Delos Yes 
Wufoo Yes 
ZagoMail Yes 
n8n No 

Integrations

Zapier Yes 
Abacum No 
CanopyDeploy No 
Causal No 
Claude Yes 
FetchSandbox Yes 
Gmail Yes 
LangChain Yes 
Mailster No 
Model Context Protocol (MCP) Yes 
PriMailer No 
Python Yes 
Ruby Yes 
Slack Yes 
Stackreaction No 
Vercel AI SDK Yes 
Workers by Delos No 
Wufoo No 
ZagoMail No 
n8n Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

$0.15 per 1000 emails
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours Yes 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours Yes 
Live Rep (24/7) Yes 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) Yes 
In Person Yes 

Vendor Details

Company Name

Kickbox

Country

United States

Website

kickbox.com

Vendor Details

Company Name

Sendmux

Founded

2026

Country

Australia

Website

sendmux.ai

Product Features

Email Deliverability

DMARC Analytics No 
Deliverability Alerts No 
Deliverability Reporting No 
Email Address Verification No 
Email Content Testing No 
Email Previewing No 
IP Blacklist Monitoring No 
Inbox Placement Testing No 
Reputation Reporting No 

Email Verification

Bulk Email Verification Yes 
Catch-all Server Detection No 
Disposable Email Detection Yes 
Domain Check No 
Mail Server Validation No 
Single Email Verification Yes 
Spam Trap Detection No 
Syntax Check No 

Product Features

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