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Average Ratings 0 Ratings

Total
ease
features
design
support

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Write a Review

Description

InboxFlow transforms your cold email setup from the very beginning. When you acquire your temporary domains, we handle the automation of SPF, DKIM, and DMARC configurations. Additionally, these domains are seamlessly redirected to your landing page, guaranteeing that your potential clients never face an error page. With domain and email verification taken care of, you can now elevate your cold email outreach. The intuitive interface of InboxFlow allows you to effortlessly manage numerous inboxes across various domains. This means you can devote more time to engaging with your prospects rather than getting bogged down in setup tasks. Furthermore, InboxFlow’s bulk-account upload capability enhances your cold emailing strategy significantly. We supply a CSV file that enables you to easily import and oversee multiple inboxes within your preferred sending platform. Wave goodbye to cumbersome, manual workflows and welcome an era of enhanced efficiency. By streamlining your cold email foundations, you can achieve exceptional deliverability rates with ease. Effortless management of your email outreach has never been more achievable.

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

Screenshots View All

No images available

Integrations

Gmail No 
Google Sheets Yes 
Instantly Yes 
Microsoft Excel Yes 
Microsoft Outlook No 
Smartlead.ai Yes 

Integrations

Gmail Yes 
Google Sheets No 
Instantly No 
Microsoft Excel No 
Microsoft Outlook Yes 
Smartlead.ai No 

Pricing Details

$45 per month
Free Trial No 
Free Version No 

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) Yes 
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

InboxFlow

Country

United Kingdom

Website

inboxflow.net

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