Mailreef Alternative: Published Pricing, Three Providers

Mailreef provides dedicated SMTP servers with dedicated IPs at $240/month per server (12-month commitment) plus $0.001 per email sent. Each server includes 150+ mailboxes. MailDeck provides three infrastructure types: Microsoft 365 Outlook starting at $0.30/inbox, Google Workspace at $2.99/inbox, and Private SMTP at $0.50/inbox, all with flat per-inbox pricing and zero per-send fees.

Both serve cold email operations at scale, but with different pricing models and infrastructure approaches. Mailreef bundles server capacity with per-send volume charges. MailDeck separates infrastructure by provider type and charges a flat rate per inbox.

MailDeck manages 833K+ inboxes across Microsoft 365, Google Workspace, and SMTP for 1,631+ clients, with 7.5M+ emails sent per day and a 98% inbox placement rate. Based on Q2 2026 MailDeck platform data.

Mailreef pricing verified on mailreef.com/pricing as of May 2026.

Quick Comparison

Pricing Comparison

Mailreef Pricing

Mailreef uses a server-based pricing model with two published tiers and an enterprise option.

All plans include a dedicated server, dedicated IP, automated SPF/DKIM/DMARC, domain registration tools, live technical support, spammer screening, and developer API access. Mailreef recommends a maximum of 3 mailboxes per domain and 50 emails per mailbox per day.

The per-send fee means total cost scales with volume. At 50,000 emails per month, the per-send charge adds $50. At 100,000 emails, it adds $100. At 500,000 emails, it adds $500. These charges stack on top of the $240-249 base.

MailDeck Pricing

MailDeck covers three infrastructure types, each with flat per-inbox pricing and zero per-send fees.

Microsoft 365 Outlook (100 inboxes per tenant):

Google Workspace:

Private SMTP (dedicated IP per client):

Minimum orders: Outlook 2 tenants ($60/mo, 200 inboxes), SMTP 100 inboxes ($50/mo), Google 10 inboxes ($39/mo).

Cost at 150 Inboxes

Mailreef's smallest server includes 150+ mailboxes, making this the natural starting comparison point.

At 150 inboxes sending 100,000 emails per month, Mailreef Agency costs $340/month. MailDeck Outlook Normal costs $60/month for 200 inboxes with no volume surcharge. That is a 5.7x difference at the entry scale.

Cost at 500 Inboxes

At 500 inboxes sending 250,000 emails per month, Mailreef costs $1,210/month. MailDeck Outlook Normal costs $150/month. The annual savings with MailDeck Outlook Normal exceed $12,700. MailDeck's flat pricing contains no variable cost component regardless of send volume.

Cost at 1,000+ Inboxes

At 1,000 inboxes sending 500,000 emails per month, Mailreef costs $2,180/month. MailDeck's Growth Diversified Stack costs $399/month for 1,130 inboxes across all three infrastructure types. That is a 5.5x cost difference while adding Microsoft and Google IP diversity.

The per-send fee compounds at scale. At 1,000,000 emails per month, Mailreef's per-send charges alone reach $1,000, pushing the total for 7 servers past $2,680/month. MailDeck's flat pricing stays at $300-$450/month for the same inbox count regardless of volume. For a detailed cost analysis of infrastructure across all major providers, see our cold email infrastructure cost breakdown.

Infrastructure Comparison

Mailreef: Dedicated SMTP Servers

Mailreef provisions dedicated servers with dedicated IPs. Each customer receives an isolated server environment with full control over the sending stack. They claim that "70% of Email Delivery Success Starts with Your Server" and emphasize full ownership of the infrastructure layer.

Each server supports 150+ mailboxes. Mailreef recommends 3 mailboxes per domain and a maximum of 50 emails per mailbox per day. At 150 mailboxes, that translates to 7,500 emails per day per server. Pre-warmed servers are available for immediate sending.

Mailreef reports 100M+ emails sent per month across their platform, 99.9% server uptime, and offers live delivery consulting chat. Their spammer screening process filters out bad actors to protect shared infrastructure reputation.

MailDeck: Three Infrastructure Types

MailDeck provisions inboxes across Microsoft 365 Outlook, Google Workspace, and Private SMTP. Each infrastructure type carries distinct deliverability characteristics.

Microsoft 365 and Google Workspace inboxes send through official provider IP pools. These IPs carry built-in trust because billions of legitimate emails flow through them daily. Corporate spam filters that run on Microsoft Exchange inherently trust emails arriving from Microsoft's own infrastructure. Google's sending infrastructure carries the highest trust score of any provider globally.

For authentication setup across all three types, see our SPF, DKIM, DMARC configuration guide.

Pricing Model Difference

Mailreef charges a flat base per server plus a per-send fee. MailDeck charges a flat rate per inbox with zero per-send fees. These two models behave differently at scale.

With Mailreef, total cost rises with send volume. A single server at $240/month sending 225,000 emails per month (150 mailboxes x 50 sends x 30 days) incurs $225 in per-send fees, bringing the real monthly cost to $465. The effective cost per mailbox jumps from $1.60 (base only) to $3.10 (base + per-send at full capacity).

With MailDeck, total cost is fixed regardless of volume. Ten Outlook Normal tenants cost $300/month whether those 1,000 inboxes send 50,000 or 150,000 emails per month. The per-inbox cost stays at $0.30.

This distinction matters most for high-volume senders. Teams sending 500,000+ emails per month on Mailreef face $500+ in per-send fees alone. On MailDeck, that same volume costs nothing beyond the flat inbox subscription.

Infrastructure Diversification

Mailreef provides one infrastructure type: dedicated SMTP servers. Every inbox, domain, and email routes through the same server architecture with dedicated IPs.

MailDeck enables multi-provider diversification across three infrastructure types. The recommended approach splits volume across Outlook for bulk SMB outreach, Google Workspace for enterprise C-suite targeting, and SMTP for volume buffer and testing.

Diversification protects against single-provider risk. If one provider tightens sending policies, the other two continue operating. MailDeck's Diversified Stack plans formalize this. The Growth plan includes 1,000 Outlook Premium inboxes + 100 SMTP inboxes + 30 Google inboxes for $399/month across three distinct IP ecosystems under one provider. For more on multi-provider strategy, see our infrastructure diversification guide.

Where MailDeck Falls Short

Mailreef holds two legitimate advantages as an inbox provider.

Higher per-mailbox sending limits. Mailreef recommends up to 50 emails per mailbox per day on their dedicated SMTP servers. MailDeck's highest per-inbox limit is 18-22 on Google Workspace, followed by 11-14 on Private SMTP and 8-10 on Outlook Premium. To match Mailreef's daily throughput from 150 mailboxes (7,500 emails/day), MailDeck SMTP would need approximately 580 inboxes. However, those 580 SMTP inboxes cost $290/month on MailDeck versus $240/month base + per-send fees on Mailreef.

Pre-warmed SMTP infrastructure available from day one. Mailreef offers pre-warmed servers, domains, and mailboxes that support immediate sending. MailDeck's Private SMTP requires 3-4 weeks of warmup to build IP reputation from zero. This warmup gap applies only to MailDeck's SMTP product. MailDeck's Pre-Warmed Outlook inboxes are ready immediately, standard Outlook warms up in 3-7 days, and Google Workspace requires 2-3 weeks.

Where MailDeck Wins

Flat per-inbox pricing with no per-send fees. MailDeck charges a fixed rate per inbox regardless of email volume. Mailreef adds $0.001 per email sent on top of the server base. At 500,000 emails per month, Mailreef's per-send charges alone cost $500. MailDeck's pricing stays flat. This predictability matters for teams scaling send volume month over month.

Lower cost per inbox at every scale. MailDeck Outlook Normal costs $0.30/inbox. Private SMTP costs $0.40-0.50/inbox. Google Workspace starts at $2.99/inbox. Mailreef's effective cost per mailbox ranges from $1.60 (base only) to $3.10+ (base plus per-send at capacity). At 1,000 inboxes sending 500,000 emails per month, the annual savings with MailDeck Outlook Normal versus Mailreef exceed $22,500.

Three infrastructure types under one provider. Mailreef provides dedicated SMTP servers exclusively. MailDeck covers Microsoft 365 Outlook, Google Workspace, and Private SMTP. Teams can match infrastructure to target audience: Google for enterprise C-suite, Outlook for bulk SMB outreach, SMTP for volume buffer. The Diversified Stack plans combine all three into a single subscription.

Official provider IP pools. MailDeck's Outlook and Google Workspace inboxes route through official Microsoft and Google IP pools. These IPs carry built-in trust from every major receiving server globally. Mailreef's dedicated IPs carry reputation from their sending history on custom SMTP servers. Official provider IPs carry institutional trust that does not depend on any individual sender's behavior.

More inboxes per domain. MailDeck Outlook tenants include 100 inboxes per domain. Mailreef recommends 3 mailboxes per domain. At 300 inboxes, Mailreef needs 100 domains. MailDeck Outlook needs 3 domains across 3 tenants. Fewer domains means less DNS management overhead and fewer domains to monitor for burn signals.

Lower minimum purchase. MailDeck's lowest entry point is 10 Google Workspace inboxes at $39/month. Outlook starts at 2 tenants (200 inboxes) for $60/month. SMTP starts at 100 inboxes for $50/month. Mailreef's minimum is one server at $240/month (annual commitment) or $249/month (flex). MailDeck offers a lower barrier for teams testing or scaling gradually.

Broader sequencer compatibility. Mailreef lists Smartlead and Instantly as supported integrations. MailDeck provides SMTP credentials that work with Instantly, Smartlead, Saleshandy, Apollo, Lemlist, Woodpecker, Reply.io, Snov.io, QuickMail, GMass, and any SMTP-compatible tool.

FAQ

How much does Mailreef cost?

Mailreef charges $240/month on a 12-month commitment (Agency plan) or $249/month on a month-to-month basis (Agency Flex). Both tiers add $0.001 per email sent. Each server includes 150+ mailboxes and a dedicated IP address. At 100,000 emails per month, the total cost reaches $340/month (annual) or $349/month (flex). Enterprise pricing requires a custom quote.

Does Mailreef offer Microsoft 365 or Google Workspace inboxes?

No. Mailreef runs exclusively on dedicated SMTP servers with dedicated IPs. MailDeck offers three infrastructure types: Microsoft 365 Outlook at $0.30-0.40/inbox (100 inboxes per tenant), Google Workspace at $2.99-3.90/inbox (5 inboxes per domain), and Private SMTP at $0.40-0.50/inbox with dedicated IPs per client.

What is Mailreef's sending limit per mailbox?

Mailreef recommends a maximum of 50 emails per mailbox per day and 3 mailboxes per domain. At 150 mailboxes per server, that equals up to 7,500 emails per day per server. MailDeck's sending limits vary by infrastructure: Outlook Normal allows 3-5 sends/day/inbox, Outlook Premium allows 8-10, Google Workspace allows 18-22, and Private SMTP allows 11-14.

How does Mailreef's per-send pricing compare to flat-rate inbox pricing?

Mailreef charges $0.001 per email sent on top of its $240/month server base. At 100,000 emails per month, that adds $100 to the monthly cost. At 500,000 emails, it adds $500. MailDeck uses flat per-inbox pricing with no per-send fees. At 1,000 Outlook Normal inboxes sending 120,000 emails per month, MailDeck costs $300/month total with zero variable charges.

Can I use Mailreef with Instantly or Smartlead?

Yes. Both providers are infrastructure-only and integrate with external sequencers via SMTP credentials. Mailreef officially supports Smartlead and Instantly. MailDeck supports Instantly, Smartlead, Saleshandy, Apollo, Lemlist, Woodpecker, Reply.io, Snov.io, QuickMail, GMass, and any SMTP-compatible tool.

Which provider is better for enterprise B2B cold email?

For enterprise B2B recipients on Microsoft Exchange or Google Workspace, MailDeck's native provider infrastructure delivers higher trust from corporate spam filters. Emails route through official Microsoft or Google IP pools, whitelisted by default on corporate mail servers globally. MailDeck manages 833K+ inboxes across 1,631+ clients with a 98% inbox placement rate on properly configured domains. Mailreef's dedicated SMTP servers perform well for general outreach but lack native provider trust signals for enterprise-specific targeting.

What is the cheapest way to get 500 cold email inboxes?

At 500 inboxes, MailDeck Outlook Normal costs $150/month ($0.30/inbox) with no per-send fees. MailDeck Private SMTP costs $250/month ($0.50/inbox). Mailreef requires 4 servers to reach 600 mailboxes at $960/month (annual) or $996/month (flex), plus $0.001 per send on top. The annual cost difference between MailDeck Outlook Normal and Mailreef at this scale exceeds $9,700 before per-send fees.

Methodology

Mailreef pricing verified on mailreef.com/pricing as of May 2026. MailDeck pricing from published rates at maildeck.co. MailDeck platform data based on Q2 2026 metrics: 833K+ managed inboxes, 1,631+ clients, 7.5M+ daily emails, 270M+ cold emails sent lifetime, 3,000+ domains under management, 98% inbox placement rate. Check mailreef.com for current Mailreef rates.

Last updated: May 2026

Written by MailDeck Team

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