Maildoso is popular for a reason - easy setup, good integrations, competitive pricing. If you're scaling past 500 inboxes or need enterprise-grade infrastructure, here's why teams switch to MailDeck.
Quick Comparison
| MailDeck | Maildoso | |
|---|---|---|
| Pricing model | Per domain (100 inboxes) | Per mailbox |
| Cost per inbox | $0.55 | $1.80 |
| Cost per 1,000 inboxes | $500/mo | $1,800/mo |
| Infrastructure | Native Microsoft 365 | SMTP + Google Workspace |
| Deliverability | 98% | Not published |
| Setup time | 48 hours | 10 minutes |
| Minimum purchase | 4 domains (400 inboxes) | 1 mailbox |
Why Teams Switch from Maildoso to MailDeck
1. 3x Lower Cost at Scale
Maildoso charges $1.80 per mailbox. Affordable for small operations, expensive at scale.
MailDeck charges per domain, with 100 inboxes per domain. That's $0.55 per inbox.
| Scale | Maildoso | MailDeck | You Save |
|---|---|---|---|
| 200 inboxes | $360/mo | $110/mo | $250/mo |
| 500 inboxes | $900/mo | $275/mo | $625/mo |
| 1,000 inboxes | $1,800/mo | $500/mo | $1,300/mo |
At 1,000 inboxes, you save $15,600/year with MailDeck.
2. Native Microsoft 365 Infrastructure
Maildoso uses a mix of proprietary SMTP and Google Workspace accounts.
MailDeck provides native Microsoft 365 Outlook tenants. This is real enterprise email infrastructure.
Why this matters for enterprise recipients:
- Microsoft-to-Microsoft emails have higher trust
- Clean headers without cold email tool fingerprints
- Better inbox placement with Fortune 500 companies
3. 98% Deliverability
We maintain 98% deliverability across all MailDeck tenants. Your emails land in primary inbox.
4. Built for High-Volume Operations
Maildoso works great for agencies starting out. Their per-mailbox pricing becomes a bottleneck when you're managing 500+ inboxes across multiple clients.
MailDeck is built for scale:
- 1 domain = 100 inboxes (simple math)
- Bulk domain management
- Automated DNS across all domains
- Enterprise-grade monitoring
When to Stay with Maildoso
Maildoso is a solid choice if:
- You're sending less than 50k emails/month
- You need quick setup (10 minutes vs 48 hours)
- You prefer Google Workspace over Microsoft 365
- You're testing cold email before committing to scale
When to Switch to MailDeck
MailDeck makes sense when:
- You're scaling past 400 inboxes
- Per-mailbox costs are eating into margins
- You need Microsoft 365 infrastructure for enterprise prospects
- Deliverability to corporate inboxes is critical
MailDeck Pricing
| Plan | Price | Domains | Inboxes |
|---|---|---|---|
| Starter | $55/mo per domain | 4-10 | 400-1,000 |
| Growth | $50/mo per domain | 11-30 | 1,100-3,000 |
| Enterprise | $45/mo per domain | 31-100 | 3,100-10,000 |
| Custom | Contact us | 100+ | 10,000+ |
Switching from Maildoso
- Sign up for MailDeck
- We provision your Microsoft 365 tenants (48 hours)
- Connect to your sequencer (Instantly, Smartlead, etc.)
- Migrate campaigns gradually or all at once
Keep your Maildoso account running during transition - no downtime.
FAQ
Can I use both Maildoso and MailDeck?
Yes. Many teams use Maildoso for Google-based outreach and MailDeck for Microsoft 365-based outreach to enterprise prospects.
Why is setup 48 hours instead of 10 minutes?
We provision real Microsoft 365 tenants with proper DNS propagation. This takes longer but results in better deliverability.
What's the minimum purchase?
4 domains (400 inboxes) on the Starter plan at $55/domain.
Ready to Scale Your Email Infrastructure?
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