MailDeck
Multi-platform cold email infrastructure provider offering Microsoft 365 tenants, Google Workspace, and private SMTP under one roof, with volume-tiered pricing and a pre-warmed Outlook add-on tier.
Pricing breakdown
| Platform | Standard | Warmed | Volume |
|---|---|---|---|
| Microsoft 365 | $3.45 | — | — |
| Google Workspace | $3.45 | — | — |
| Dedicated SMTP | $3.45 | — | — |
Pricing notes
GWS $2.99–$3.90/mb; Outlook tenant $30–$40/tenant
Replacements
Free domain replacement when domains burn under normal use
Our take on MailDeck
MailDeck covers more ground than most: Microsoft 365 (Outlook), Google Workspace and private SMTP, all on what it describes as dedicated-tenant (“no shared IPs”) infrastructure. Outlook inboxes are remarkably cheap — about $0.45/inbox at the tenant level — Google Workspace scales down to roughly $2.99, and free domain replacement is included on several plans.
The pricing presentation is the main friction. The homepage and much third-party coverage cite the lower annual rates (e.g. $30 Outlook tenants) while the actual pricing page shows higher monthly figures, which inflates the perceived value — check whether you're looking at annual or monthly. Standard inboxes also arrive cold, with pre-warmed Outlook a ~33% upcharge (and pre-warmed GWS/SMTP currently sold out). Scale claims of 800k+ inboxes are self-reported, and a competitor review disputes the “no shared IPs” line, so weigh the dedicated-IP claim as plausible but not independently confirmed.
What we like
- +M365, GWS and SMTP from one provider
- +“No shared IPs” — dedicated-tenant model
- +Very cheap Outlook inboxes (~$0.45) + free domain replacement
- +Volume pricing down to ~$2.99 for Google Workspace
Watch out for
- −Standard inboxes ship cold; pre-warmed Outlook is a ~33% upcharge
- −Advertised annual prices undercut the higher monthly rates
- −Scale claims (800k+ inboxes) are self-reported
- −Some ambiguity over the IP model
Best for: Buyers who want multi-platform coverage (especially cheap Outlook at volume) from a single provider with free domain replacement.