MailDeck Review — Honest Pros, Cons & Pricing (2026)

Category: Cold email infrastructure with Google Workspace, Outlook, and SMTP tiers

Also known as: maildeck.

Overview

MailDeck is a cold email infrastructure provider offering multiple tiers: Google Workspace inboxes, Outlook 365 inboxes, and SMTP infrastructure at different price points. The multi-tier approach lets cold email teams match infrastructure to budget and deliverability requirements. SMTP tier starts at $0.40/inbox making it one of the cheapest SMTP options in the market, while Google Workspace and Outlook tiers provide better reputation inheritance.

Pricing

Multi-tier pricing. SMTP tier from $0.40/inbox. Google Workspace and Outlook 365 at higher tiers. Bulk discounts available.

Strengths

Multi-tier infrastructure options (Google, Outlook, SMTP)
Aggressive SMTP pricing at $0.40/inbox
Flexibility to mix infrastructure types
DNS configuration included

Weaknesses

SMTP tier requires extensive warmup before effective sending
Smaller scale than established providers
Multi-tier complexity can confuse buying decisions

Best For

Cold email operations wanting flexibility across infrastructure types
Budget operations considering SMTP vs Google Workspace trade-offs
Teams testing multiple infrastructure approaches

Not Ideal For

Operations requiring consistent single-platform infrastructure
Teams needing pre-warmed inboxes
Enterprise operations requiring SLAs