Comparison
Jan 23, 2026
CEO and co-founder
Maildoso Pros and Cons: An Honest Review for Growing Agencies
Quick verdict: Is Maildoso worth the risk?
Maildoso works for specific situations. The platform automates DNS configuration and offers competitive per-inbox rates. But the infrastructure model creates risks that grow as you scale your agency from 5 clients to 15.
Pricing | $1.80-3.10 per mailbox | Per-inbox costs add up at scale |
Setup | Automated SPF/DKIM/DMARC | Limited DNS control for custom configurations |
IP Type | Cost-effective shared pools | No dedicated IPs (reputation depends on other users) |
Domain quality | Domains included in plans | Reports of .xyz/.click replacements affecting deliverability |
Support | Chat and email available | Users report slow response times |
Best for:Solo founders running fewer than 10 domains with minimal budget and high risk tolerance.
Not ideal for: Agencies managing client campaigns where deliverability directly impacts retention and revenue.
The choice between shared and dedicated IPs represents the most significant factor affecting long-term campaign success, according to Saleshandy's analysis.
Maildoso pros: Where the platform delivers value
Cost-effective entry point for small operations
Maildoso's pricing structure appeals to founders watching every dollar. The platform charges approximately $1.80-3.10 per mailbox depending on volume tier, with entry plans at $100/month for 32 mailboxes. This puts cold email infrastructure within reach for bootstrapped operations.
For context, 32 inboxes on Google Workspace Business Starter would cost $224-269/month at current rates. Maildoso's $100/month for the same count represents a 56-63% reduction in raw infrastructure spend.
The tiered structure breaks down as follows:
Plan 1: 32 mailboxes + 8 domains at $100/month ($3.10/mailbox)
Plan 2: 68 mailboxes + 17 domains at $166/month ($2.40/mailbox)
Plan 3: 400 mailboxes + 100 domains at $733/month ($1.80/mailbox)
Including domains in the base price simplifies budgeting compared to platforms requiring separate domain purchases.
Automated DNS configuration saves setup time
Manual DNS configuration for cold email domains requires creating SPF, DKIM, and DMARC records across multiple registrars. For 50 domains, you'll burn hours of technical work logging into Namecheap, GoDaddy, or Cloudflare panels individually.
Maildoso automates this process. GMass's cold email infrastructure comparison confirms the platform handles DNS record creation automatically, allowing you to provision inboxes without manual panel access.
For non-technical founders, this automation removes a significant barrier to launching campaigns.
Bulk inbox management features
The platform supports creating multiple inboxes simultaneously rather than one-by-one provisioning. This matters when onboarding new clients who need 10-15 domains each for proper rotation.
The bulk management capabilities work well for initial setup, though users report the interface becomes harder to navigate as account counts grow past 50+ inboxes.
Maildoso cons: The hidden costs of "cheap"
Shared IP pools create deliverability risk
This is the most significant limitation agencies need to understand. Maildoso operates on shared IP infrastructure, meaning your emails send from the same IP addresses used by hundreds or thousands of other accounts.
Infraforge's Maildoso review documents that "Maildoso operates hundreds of email accounts and domains using a shared IP pool" with "dynamic IP rotation, which is budget-friendly but comes with risks."
The problem: if another user on your shared IP sends spam, engages in poor practices, or triggers complaints, that IP's reputation drops. Your campaigns inherit that damaged reputation even if your sending behavior is perfect.
Think of shared IPs like apartment buildings where everyone shares the same address reputation. One bad tenant causes problems for all residents. With dedicated IPs, you own your reputation entirely.
Users report that when others on shared IPs don't follow best practices, it drags down everyone's deliverability. Multiple reports describe sudden deliverability crashes tied to shared infrastructure issues.
One documented case involved a user who had been sending cold emails for years without burning a domain, but upon using Maildoso, "every single domain was burned in a single day because of a 'large scale issue' they were facing." The platform replaced domains with .xyz and .click extensions in multiple reported cases, which many email providers treat with higher suspicion.
For agencies where client retention hinges on deliverability, this unpredictability creates unacceptable risk. A client paying $3,000/month expects reliable inbox placement, not explanations about shared infrastructure problems.
Limited DNS control restricts technical flexibility
While Maildoso automates basic DNS setup, it restricts granular control over records. User feedback highlights that some teams couldn't connect domains to other tools or services due to DNS configuration restrictions.
One reviewer explained:
"Unfortunately, we cannot connect these domains to other services because we are not allowed to configure DNS. It is limited to connecting it only to certain tools." - Verified user review of Maildoso
This limitation matters when:
You need to add custom DNS records for tracking or verification
You want to use domains across multiple platforms simultaneously
You require specific SPF includes for compliance requirements
For agencies running sophisticated multi-tool stacks, this restriction creates workflow friction that accumulates over time.
Interface and support limitations at scale
User reviews consistently mention UI and support challenges. The interface feels clunky at times, and navigating between features isn't always smooth as account counts grow.
Specific complaints include:
No folder view or account grouping: Managing 50+ accounts becomes visually chaotic
Confusing billing for agencies: Users with multiple clients find it difficult to track costs per client
Support response times: Users report slow response times via chat and email
One user described needing to reach out to support almost every day because issues with the management portal kept recurring. For agencies juggling client deadlines, slow support turns small issues into campaign delays.
For context, our users describe a different support experience:
"One of the best mailbox infra vendors I have ever used super easy and quick setup and support is practically 24/7 with at max a 2min wait to get a question answered." Inframail has 38 5-star reviews on Trustpilot. - Verified user review of Inframail
The agency founder's dilemma: Scalability vs stability
When evaluating cold email infrastructure, total cost of ownership matters more than headline pricing. You need to account for the platform fee, domain costs, warmup tools, and the hidden cost of deliverability problems.
Total cost of ownership comparison
Inframail | $129/month flat | Dedicated (1-3 IPs) | Monthly or annual | Need warmup tool (budget $15-50/mo per inbox) |
Maildoso | ~$125-137/month | Shared pool | Monthly or quarterly | Your deliverability depends on strangers' behavior |
Google Workspace | $350-420/month | High-reputation shared | Monthly | Linear scaling kills margins above 50 inboxes |
Mailforge | ~$155/month | Shared with rotation | Flexible | Same shared IP neighbor risk as Maildoso |
At 50 inboxes, Maildoso and Inframail appear cost-competitive. The difference becomes clear when you factor in risk.
With Maildoso's shared IPs, one deliverability collapse could cost you a $3,000/month client. That single churn event eliminates years of infrastructure "savings." With our dedicated IPs, your reputation stays isolated from other users' behavior.
As explained in our video on dedicated vs shared IPs, dedicated infrastructure means your sending behavior alone determines ESP trust.
Scale economics favor flat-rate pricing
The math shifts dramatically at higher volumes:
100 inboxes:
Maildoso: ~$166/month (68-inbox plan) + additional cost for remaining inboxes
Our platform: $129/month (same flat rate)
Google Workspace: $700-840/month
200 inboxes:
Maildoso: ~$733/month (400-inbox plan, overpaying for capacity)
Our platform: $129/month (still flat rate)
Google Workspace: $1,400-1,680/month
For agencies adding clients, our unlimited model prevents infrastructure costs from scaling linearly with growth. You add 5 clients without doubling your platform spend.
One agency founder described the impact:
"Inframail has been absolute gold in terms of delivering a great customer experience, and allowing me to spin up cold email infrastructure at scale for my clients as easily and fast as possible" - Verified user review of Inframail
Maildoso vs Inframail: The infrastructure comparison
Reputation control through dedicated IPs
The fundamental difference between these platforms is IP architecture. Maildoso uses shared pools with rotation. We provide dedicated IPs (1 on the Unlimited plan, 3 on the Agency Pack).
Dedicated IPs mean:
Your sending reputation reflects only your campaigns, not 500 strangers'
No risk of waking up to inbox rates crashed by someone else's spam run
When you make mistakes, you control the fix without waiting for a shared pool to recover
Deliverability stays consistent when you follow warmup and volume best practices
GMass's infrastructure comparison confirms that we were "the first of the private cold email infrastructure companies" and provide dedicated US-based IPs rather than shared pools.
Setup speed and automation
Both platforms automate DNS configuration, but user experiences differ significantly.
Our user managing over 1,000 accounts shared:
"Adding all those records would have probably taken dozens of hours. Instead all records were added within 10 minutes." - Verified user review of Inframail
For a detailed walkthrough of the setup process, watch our platform demo.
Microsoft partnership adds credibility
We built our infrastructure on Microsoft's cloud platform, announcing the enterprise partnership in January 2024. This provides institutional backing that newer or smaller infrastructure providers cannot match.
This Microsoft foundation gives you deliverability consistency and platform stability across dozens of simultaneous client campaigns.
Support quality comparison
Agency operations require responsive support when issues arise. Our support experience consistently receives praise:
"Their customer support is excellent. They exhibit both politeness and thoroughness, consistently following up until they resolve my concerns completely. That kind of support is rare and greatly appreciated!" - Verified user review of Inframail
We also offer 1-on-1 deliverability consulting, helping agencies optimize campaigns rather than just troubleshoot technical problems.
For agencies booking significant call volume, these results matter. Watch how one user achieved 200+ appointments per month with our infrastructure.
Final recommendation: Who should use Maildoso?
Maildoso makes sense when:
You're running fewer than 10 domains with under $500/month infrastructure budget
You have high risk tolerance for 20-30% deliverability fluctuations
You're not managing client campaigns where a single deliverability crash costs you $3,000+ MRR
Choose us when:
You manage 50+ domains across 5-15 active clients
Client retention depends on consistent 75-85% inbox placement rates
You need month-to-month flexibility to pilot with 2-3 clients before full migration
Infrastructure costs must stay under 18-25% of client billings to protect margins
You want dedicated IPs where your sending behavior alone determines reputation
The cost difference at scale makes the decision straightforward. Our $129/month flat rate with dedicated IPs protects both your margins and your clients' campaign performance.
Sign up for Inframail and get started today. We provision unlimited inboxes on dedicated IPs, automate DNS configuration, and export credentials directly to Instantly or Smartlead.
For step-by-step guidance, watch the complete setup tutorial.
Frequently asked questions
Does Maildoso provide dedicated IPs?
No. Maildoso uses shared IP pools with dynamic rotation, meaning your deliverability depends on how hundreds of other users behave on the same IPs.
How does Maildoso deliverability compare to Google Workspace?
Inconsistent. Google Workspace uses high-reputation shared infrastructure with strict abuse controls. Maildoso's shared pools lack the same reputation safeguards, leading to user reports of inbox rates dropping from 80% to 45-55% overnight and burned domains.
What are "burned domains" in cold email?
Domains that have been flagged by email providers due to spam complaints, blacklist additions, or poor sending practices. Once burned, a domain's emails consistently land in spam until reputation recovers (which can take months) or the domain is replaced.
What integrations does Inframail support?
We export IMAP/SMTP credentials to CSV for import into platforms like Instantly.ai, Smartlead, and other cold email sending tools. Our help documentation covers compatible platforms.
How long does Inframail setup take?
Our users report provisioning 10+ inboxes in under 10 minutes, including automated DNS configuration. We handle SPF, DKIM, and DMARC records without requiring manual panel access.
Does Inframail include email warmup?
No. We focus on infrastructure provisioning. You'll need an external warmup tool like Warmbox or Lemwarm ($15-50/month per inbox). Our warmup guide covers the process.
Key terms glossary
Dedicated IP: An IP address only your account uses. Your sending reputation depends solely on your campaigns and practices, not other users' behavior.
Shared IP pool: Multiple users send from identical IP addresses. When one user triggers spam complaints or gets blacklisted, everyone on that pool inherits the damaged reputation.
SPF/DKIM/DMARC: Email authentication protocols that prove your domain's legitimacy to Gmail, Outlook, and other providers. Proper configuration improves inbox placement and blocks domain spoofing.
Inbox placement rate: The percentage of your sent emails landing in recipients' primary inboxes rather than spam folders. Agencies typically target 75-85% for sustainable campaign performance.
Domain warmup: Gradually increasing send volume on new domains to build positive sender reputation. Rush this process and you burn the domain within days.
