Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

Description

SendPost replaces manual hacks, messy workarounds and daily frustrations associated with your email API/SMTP provider. If you send a few thousand emails, most email API solutions will work well. You will choose one based on its price, features, or support. If you are a big sender, sending millions of emails each month, the real problem is here. This is when managing multiple domains, IP-Pols, and IP/Domain reputation becomes a major headache. Even a small drop in your email open rate, or delivery, can have a significant impact on your revenue. You need a solution that helps you identify the problem and provides quick solutions. You don't want spend hours looking through logs to determine if your domain, IP or sending reputation are low.

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 Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Claude No 
Codex CLI No 
E-Warmup Yes 
FetchSandbox No 
Gmail No 
LangChain No 
Microsoft Outlook No 
Model Context Protocol (MCP) No 
Python No 
Ruby No 
Slack No 
Vercel AI SDK No 
Warmup Inbox Yes 
Zapier No 
n8n No 

Integrations

Claude Yes 
Codex CLI Yes 
E-Warmup No 
FetchSandbox Yes 
Gmail Yes 
LangChain Yes 
Microsoft Outlook Yes 
Model Context Protocol (MCP) Yes 
Python Yes 
Ruby Yes 
Slack Yes 
Vercel AI SDK Yes 
Warmup Inbox No 
Zapier Yes 
n8n Yes 

Pricing Details

$7 per month
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 No 
Live Rep (24/7) Yes 
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) Yes 
In Person No 

Types of Training

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

Vendor Details

Company Name

SendWorks

Founded

2016

Country

United States

Website

sendpost.io

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 

Product Features

Alternatives

Alternatives

SMTP.com Reviews

SMTP.com

Ziff Davis
EmailLabs Reviews

EmailLabs

Vercom
SendGrid Reviews

SendGrid

Twilio SendGrid
SendPost Reviews

SendPost

SendWorks