Sabo Nagy
Founder & CEO
Has built email infrastructure serving 1M+ inboxes across 1,500 clients. Specializes in email infrastructure strictly for high-volume cold outreach.
MailDeck · Enterprise Email Infrastructure
Best Cold Email Software for Founders: 8 Tools Compared by Stage [2026 Data]
We manage 833K+ inboxes connected to every major cold email sequencer. Here's which tool works at each founder stage, what it actually costs with infrastructure...
Best Inbox Warming Tools 2026: Instantly vs Smartlead vs MailReach Compared
We compared the top inbox-warming tools — Instantly, Smartlead, MailReach — on results, price, and what actually protects deliverability.
Cold Email Cost Per Lead and Cost Per Meeting: 2026 Benchmarks
Cold email costs $21-$164 per lead and $53-$392 per meeting depending on infrastructure and volume. Full calculator with MailDeck platform data from 833K+ inbox...
Cold Email Infrastructure Cost: 2026 Pricing Comparison Across 11 Providers
We analyzed pricing of 11 cold email infrastructure providers at 100, 500, 1,000 and 5,000 inbox scale. Full cost breakdown with per-inbox rates.
Cold Email Cost Breakdown: The 5 Invoices Behind Every Campaign
Your $37/mo cold email tool actually costs $300-$1,100/mo. We break down all 5 cost layers with 2026 pricing data from 833K+ managed inboxes: inboxes, sequencer...
Cold Email vs Hiring an SDR: Full Cost and ROI Comparison [2026 Data]
A fully loaded SDR costs $102K-$210K/year. Cold email infrastructure starts at $99/month and books meetings at 1/18th the cost per meeting. Full breakdown with ...
How Many Inboxes Do You Actually Need? Data from 500+ Cold Email Campaigns
5 emails per Outlook inbox per day. That's the rule for Microsoft 365. We break down exactly how many inboxes you need for 10K, 50K, 100K, and 1M+ emails/month ...
How to Start a Cold Email Agency in 2026
Step-by-step guide to launching a cold email agency with real cost breakdowns at 100K sends/client average. Infrastructure costs: $200-$3,500/month on MailDeck ...