MailTantra
MailTantra
Our story

Built by outreach obsessives

We spent a decade running cold-email campaigns for clients. We got sick of duct-taping Lemlist, Clay, and Zapier together — so we built the tool we always wanted.

12,000+
Emails sent daily
340+
Agencies onboarded
18.4%
Average reply rate
4.2×
Average ROI lift
Mission

Outreach infrastructure that scales with your agency

Cold email is not broken. The tooling around it is. Agencies waste hours every week manually importing leads, writing prompt templates, monitoring reply threads, and generating client reports.

MailTantra unifies every layer of the outreach stack — lead enrichment, AI personalization, multi-account sending, deliverability monitoring, and ROI reporting — into a single platform that speaks the language of agencies.

Get in touch
2021
Founded in Bangalore. First 10 clients onboarded manually.
2022
Launched multi-inbox warmup and sequence automation.
2023
Integrated GPT for per-prospect personalization. Reply rate doubled in beta.
2024
Crossed 200 agencies. Launched white-label reporting and client workspaces.
2025
AI reply detection, Slack sync, and live ROI dashboards shipped.
Now
Building the future of agentic outreach. Join us for early access.
Values

How we think about the product

Speed over perfection

A good email sent today beats a perfect email never sent. We build tools that ship campaigns in minutes, not days.

Deliverability first

We are obsessed with inbox placement. Every feature we ship is tested against real providers before it reaches your campaigns.

Agencies, not individuals

Multi-client workspaces, role-based access, and white-label reporting — everything built for teams managing more than one client.

Radical transparency

Our status page is always public. We post post-mortems when things go wrong. You will never wonder what is happening.

Team

The people behind MailTantra

MV
Manish Vaghamshi
CEO & Co-Founder

Went from running a one-man company to leading a team of 15. Obsessed with building tools that make agency life easier and more profitable.

PS
Priya Sharma
CTO & Co-Founder

Ex-Amazon ML engineer. Architected the AI personalization engine that powers every email MailTantra sends.

LF
Lucas Ferreira
Head of Product

Grew three outreach tools from 0 to 10k users. Obsessed with removing every unnecessary click from the agency workflow.

MN
Meera Nair
Head of Customer Success

Formerly led a 20-person cold-email agency. She has sent over 2 million emails and knows every deliverability trick in the book.

Ready to join 340+ agencies?

Apply for early access and get your first month free.