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Average Ratings 0 Ratings

Total
ease
features
design
support

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Write a Review

Description

Dead Simple Email offers an email API that provides genuine email inboxes for AI agents and automated workflows. With just a single API call, users can set up an inbox and communicate using real email addresses via REST or standard IMAP/SMTP protocols, while receiving replies formatted as structured webhooks. Incoming messages undergo a prompt injection check prior to delivery, and users can access a dashboard that displays the complete history of communications for each agent. The service begins with a free plan that includes 5 inboxes, with an option to upgrade to 100 inboxes for $29 per month, charging based on the number of inboxes rather than the number of users. This flexibility makes it an appealing choice for businesses looking to integrate email functionality seamlessly into their automated systems.

Description

SubsiMail is a platform for self-hosted cold email sequencing, allowing users to manage prospect lists, templates, connected inboxes, and all campaign-related data directly within their own database rather than relying on a third-party SaaS solution. Designed as an alternative to platforms like Instantly, Smartlead, lemlist, and Apollo, it offers flat pricing based on connected inboxes instead of per-seat charges, ensuring complete ownership and export of data without any content review processes or external access to contacts and campaigns. The application operates seamlessly as a single Docker container on any $5 VPS, enabling users to connect to Gmail, Outlook, or any SMTP/IMAP inbox, create multi-step email sequences that incorporate merge fields and reply detection, manage user roles (admin, manager, view-only) while maintaining a comprehensive audit trail, and utilize integration through a REST API secured by personal API keys. Furthermore, the initial connected mailbox comes with a perpetually free option, making it an attractive choice for individuals and businesses alike. This unique setup empowers users with greater control over their email marketing campaigns while simplifying the management process.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

No images available

Screenshots View All

No images available

Integrations

Gmail No 
Microsoft Outlook No 
Model Context Protocol (MCP) Yes 

Integrations

Gmail Yes 
Microsoft Outlook Yes 
Model Context Protocol (MCP) No 

Pricing Details

$29/month (100 inboxes)
Free Trial Yes 
Free Version Yes 

Pricing Details

Free (paid plans from $49/mo)
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 No 
On-Premises Yes 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux Yes 
Chromebook No 

Customer Support

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

Customer Support

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

Types of Training

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

Types of Training

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

Vendor Details

Company Name

Dead Simple Email LLC

Founded

2026

Country

United States

Website

deadsimple.email

Vendor Details

Company Name

SubsiMail

Founded

2026

Country

India

Website

subsimail.com

Product Features

Product Features

Email Marketing

A/B Testing No 
Artificial Intelligence No 
Auto-Responders No 
CAN SPAM Compliance No 
Customer Surveys No 
Drip Campaigns No 
Dynamic Content No 
Event Triggered Email No 
Image Library No 
Landing Pages/Web Forms No 
Mailing List Management No 
Mobile Optimized Emails No 
Reporting/Analytics No 
Subscriber Management No 
Template Management No 
WYSIWYG Email Editor No 

Alternatives

Alternatives

PureMail Reviews

PureMail

PureMail LLC