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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

Wren is an email signature and banner campaign platform for small teams (5–100 people). Pick from 20 professional templates with a live preview — teammates join via one link and paste their signature into Gmail, Outlook, or Apple Mail themselves. Wren never needs access to your mailbox or email server. Launch a company-wide banner campaign once and it appears under every email your team sends, swappable in one click, with click tracking. Flat pricing instead of per-seat fees. EU-hosted and GDPR-friendly. Free for one person forever; free signature builder with no account needed; 14-day Team trial, no credit card.

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

SMB

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

$99/month/50 users
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

Wren
Founded: 2026
Sweden
flywithwren.com

Alternatives

Alternatives

Sigsync

Sigsync

Shifttocloud Inc.

Categories

Categories

Integrations

Gmail
Microsoft Outlook
Apple Mail

Integrations

Gmail
Microsoft Outlook
Apple Mail
Claim SubsiMail and update features and information
Claim SubsiMail and update features and information
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Claim Wren and update features and information