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About

SubsiMail is a self-hosted cold email sequencing platform. Prospect lists, templates, connected inboxes, and all campaign data live in your own database, not a third-party SaaS. It's built as a self-hosted alternative to Instantly, Smartlead, lemlist, and Apollo, with flat per-inbox pricing instead of per-seat fees, full data ownership and export, no content review, and no third-party access to your contacts or campaigns. Runs as a single Docker container on any $5 VPS. Connect Gmail, Outlook, or any SMTP/IMAP inbox; build multi-step sequences with merge fields and reply detection; manage per-user roles (admin/manager/view-only) with a full audit trail; and integrate via a REST API with personal API keys. The first connected mailbox is free forever.

About

Vobo (visto bueno — "seen, good") is a human-in-the-loop review station for AI output — text, images, audio, video, even .docx. Tagline: Human redline for AI output. POST an artifact to one endpoint, a named reviewer accepts or rejects against your criteria with anchored comments, and Vobo emits a machine-legible decision to any HTTP POST, n8n, or a pull cursor. Open source under the Apache 2.0 license. Self-host free forever, or use the hosted free tier (1,000 review requests per month). It does not replace your CRM or repo; it sits between the model and the system of record.

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

Sales teams, agencies, recruiters, and solo founders running cold email outreach who want to own their data instead of trusting a third-party SaaS with their prospect lists.

Audience

Developers, AI/ML engineers, QA and DevOps teams building AI pipelines

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

No images available

Screenshots and Videos

No images available

Pricing

Free (paid plans from $49/mo)
Free Version
Free Trial

Pricing

$0 (free / open source)
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

SubsiMail
Founded: 2026
India
subsimail.com

Company Information

Vobo
Cyprus
vobo.dev

Alternatives

Alternatives

PentestPad

PentestPad

Secure Block
Tritium

Tritium

Tritium Legal Technologies Limited
Dedoctive

Dedoctive

Collaboration Tools Ltd

Categories

Categories

Integrations

Gmail
Microsoft Outlook

Integrations

Gmail
Microsoft Outlook
Claim SubsiMail and update features and information
Claim SubsiMail and update features and information
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Claim Vobo and update features and information