Inframail Alternative: Lower Cost at Scale with Native Microsoft 365

Inframail positions itself as the "World's First Email Infrastructure Setup Platform" with automated domain provisioning and IP rotation. MailDeck offers dedicated Microsoft 365 tenants at a transparent per-domain price. Both serve the cold email market, but they make different tradeoffs.

This comparison breaks down the pricing, infrastructure differences, and when each provider makes more sense for your operation.

Inframail pricing available on https://inframail.io/#pricing as of March 2026.

Quick Comparison

Pricing Comparison

Inframail uses custom pricing based on team size. Contact them for specific quotes.

MailDeck pricing:

Google Workspace:

• Start Up (1-249 inboxes): $3.50/inbox
• Growth (250-1,249 inboxes): $3.00/inbox
• Enterprise (1,250+ inboxes): $2.80/inbox

Outlook Normal Licence:

• 1-20 tenants: $30/tenant
• 20-100 tenants: $28/tenant
• 100+ tenants: $25/tenant

Outlook Premium Licence:

• 1-20 tenants: $40/tenant
• 20-100 tenants: $38/tenant
• 100+ tenants: $35/tenant

SMTP:

• 1-1,000 inboxes: $0.50/inbox
• 1,000-5,000 inboxes: $0.45/inbox
• 5,000+ inboxes: $0.40/inbox

MailDeck prices shown for SMTP product. Google Workspace and Outlook tenant pricing also available — see full pricing below.

Important context: Inframail requires contacting sales for pricing. MailDeck offers various minimums depending on product — starting from 1 inbox for SMTP or 1 tenant for Outlook. If you need a quick price comparison, MailDeck's transparency gives you an immediate answer. For a comparison across all providers, see our pricing analysis of 11 cold email providers.

Infrastructure Differences

MailDeck: Dedicated Microsoft 365 Tenants

MailDeck provisions dedicated Microsoft 365 tenants with automated DNS configuration (SPF, DKIM, DMARC). Your emails send through Microsoft's servers with Microsoft's sender reputation.

This matters most when your recipients are enterprise companies using Microsoft Exchange. Microsoft-to-Microsoft email receives higher trust from corporate spam filters. For a deeper look at DNS configuration, see our SPF, DKIM, DMARC setup guide.

Inframail: Private SMTP with IP Rotation

Inframail uses private infrastructure with automated domain provisioning and IP rotation to reduce blacklisting risk. They're part of the Salesforge ecosystem, which may provide tighter integration if you use Salesforge for sequencing.

This matters if you prefer private infrastructure over Microsoft 365, or if IP rotation is central to your deliverability strategy.

Where MailDeck Falls Short

To give you an honest comparison, here's where Inframail has advantages:

Custom configuration. Inframail offers more technical configuration options for teams that want granular control over their email infrastructure. MailDeck prioritizes simplicity over customization.

Salesforge integration. If you're in the Salesforge ecosystem, Inframail may offer tighter integration. MailDeck works with any SMTP-compatible sequencer but isn't optimized for any specific one.

IP rotation. Inframail's approach includes IP rotation to manage reputation. MailDeck relies on Microsoft's established infrastructure without IP rotation.

Google Workspace focus. MailDeck offers both Microsoft 365 and Google Workspace, but our primary focus and strongest infrastructure is Microsoft 365. If you need equal focus on both, research Inframail's offering.

Minimum purchase. MailDeck's pricing starts from $0.40/inbox for SMTP, with various minimums depending on product. Inframail may offer lower entry points depending on their custom pricing.

Where MailDeck Wins

Transparent pricing. MailDeck publishes all pricing on our website. No sales calls required to know what you'll pay — pricing varies by product (SMTP, Google Workspace, Outlook).

Dedicated infrastructure. Each MailDeck domain gets its own Microsoft 365 tenant. Your domains are fully isolated from other customers.

Enterprise deliverability. Microsoft 365 infrastructure has the highest trust with corporate mail servers. We maintain 98% inbox placement across 650K+ managed Outlook inboxes.

Simple scaling. MailDeck pricing is linear. Add domains to add capacity. No tier jumping or custom negotiation. To understand how many inboxes you need, see our inbox calculator.

MailDeck Pricing

Google Workspace Inboxes:

Outlook Normal Licence Tenants:

Outlook Premium Licence Tenants:

SMTP Inboxes:

All plans include automated DNS configuration (SPF, DKIM, DMARC).

FAQ

How much does Inframail cost?

Inframail uses custom pricing based on team size and requirements. They don't publish standard pricing tiers on their website. MailDeck publishes all pricing: from $0.40/inbox (SMTP) to $3.50/inbox (Google Workspace), plus Outlook tenants from $25/tenant.

How does MailDeck compare to Inframail on price?

MailDeck charges from $0.40/inbox (SMTP) to $3.50/inbox (Google Workspace), plus Outlook tenants from $25/tenant. At 1,000 SMTP inboxes, MailDeck costs $450/month with transparent pricing. Inframail requires custom quotes. The tradeoff: MailDeck requires 48-hour setup.

What infrastructure does Inframail use?

Inframail uses private email infrastructure with automated domain provisioning and IP rotation. MailDeck uses native Microsoft 365 Outlook tenants with Microsoft's established sender reputation.

Can I use MailDeck with Instantly or Smartlead?

Yes. MailDeck is infrastructure only. It provides SMTP credentials that work with any sequencer: Instantly, Smartlead, Salesforge, Apollo, and any other SMTP-compatible tool.

Is Inframail good for beginners?

Inframail has a learning curve according to reviews due to its technical configuration options. MailDeck handles DNS configuration automatically and requires minimal technical setup, but takes 48 hours for provisioning.

Which is better for enterprise recipients?

MailDeck's Microsoft 365 infrastructure typically has better inbox placement with enterprise recipients because Microsoft-to-Microsoft email has the highest trust level. Inframail uses private SMTP infrastructure.

How long does MailDeck setup take?

48 hours. MailDeck provisions dedicated Microsoft 365 tenants with full DNS configuration. Inframail offers automated provisioning that may be faster for initial setup.

Written by Sabo Nagy

Founder & CEO

Has built email infrastructure serving 650K+ inboxes across 1,500 clients. Specializes in email infrastructure strictly for high-volume cold outreach.

X View Profile