Alternatives
Jan 25, 2026
CEO and co-founder
Why Agency Founders Switch from Maildoso: Common Reasons & Better Alternatives
The hidden costs of scaling with Maildoso
Maildoso offers a low barrier to entry for agencies just starting with cold email. The problems emerge when you try to scale past 50-100 inboxes across multiple clients.
Per-inbox pricing punishes agency growth
Maildoso's pricing starts at $100/month for 32 mailboxes, which works out to roughly $3.10 per mailbox. As you scale, the per-mailbox cost drops slightly, but your total bill keeps climbing.
Here's what the math looks like at different scales:
Inbox Count | Maildoso Monthly Cost | Inframail Monthly Cost | Monthly Savings |
50 inboxes | $91.50-$137.50 | $129 | $0-$8.50 |
100 inboxes | ~$229 | $129 | $100 |
200 inboxes | ~$458 | $129 | $329 |
At 200 inboxes,Maildoso costs $458/monthwhile Inframail's flat-rate model stays at $129/month. That's $329/month in savings, or $3,948 annually, going straight back into your margin.
The contrast becomes even sharper when you compare against Google Workspace. At $8.40 per user monthly, 100 inboxes on Google Workspace costs $840/month. 300 inboxes costs $825/month with Maildoso, while Inframail provides the same capacity for $129/month.
"I personally have over 1,000 email accounts with Inframail for one flat price. Adding all those records would have probably taken dozens of hours. Instead all records were added within 10 minutes." - Verified user review of Inframail
The "shared IP" deliverability trap
Maildoso uses shared IP infrastructure, meaning multiple users send emails from the same IP addresses. The risk here is straightforward: if someone else on that IP gets flagged for spam, your emails might also end up in the spam folder.
Think of it like a carpool lane where you're affected by other drivers. One bad actor spamming gets the whole IP range flagged, and your carefully crafted campaigns suffer the consequences. Dedicated IPs work like private lanes where your behavior alone determines reputation.
Reviews on G2 confirm this concern: "If another user on the same IP doesn't follow best practices, it could drag down your deliverability too. Imagine putting in all the effort to maintain good email hygiene, only to have someone else's mistakes impact your campaigns."
The frustration compounds because you have zero visibility into who else shares your IP and what they're sending. Deliverability complaints are common: "There are complaints about low deliverability despite the best measures in Maildoso."
For a visual breakdown of how dedicated versus shared IPs affect your campaigns, watch our Dedicated IP vs Shared IP Pools comparison video.
Support bottlenecks that risk client churn
When a client campaign gets blocked or deliverability tanks, waiting 24 hours for a support response isn't viable. G2 reviewers note that the platform's guidance can be lacking, making setup more complicated than necessary.
The billing side also creates friction. One reviewer mentioned: "Invoicing and billing is quite confusing when working as an agency. I have several clients and accounts so it is difficult to me to understand how much it cost for each of my clients."
Compare that to what Inframail users report:
"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." - Verified user review of Inframail
Top Maildoso alternatives for agencies in 2025
I've tested the major players in cold email infrastructure. Here's how they stack up for agencies managing 50+ domains.
Inframail: Flat-rate dedicated IP infrastructure
Inframail positions itself as the scalable choice for agencies with predictable costs and isolated reputation control.
Core pricing:
Unlimited Plan: $129/month for unlimited inboxes with 1 dedicated US-based IP
-The Agency Pack at $327/month for unlimited inboxes with 3 dedicated US-based IPsKey advantages:
Flat-rate economics: Your bill stays at $129/month whether you create 50 or 500 inboxes. No per-seat tracking, no overage surprises.
Dedicated IP isolation: Your sending reputation stays completely separate from other users. If your campaigns follow best practices, your deliverability reflects that.
Automated DNS setup: The platform configures SPF, DKIM, and DMARC records automatically in seconds, eliminating hours of manual DNS panel work.
"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
The setup speed is a major differentiator. Watch this step-by-step Inframail setup tutorial to see the workflow, or this video showing how to send 1000+ cold emails per day with a 4-minute setup.
For agencies concerned about deliverability, Inframail users report strong results:
Our help center guide on calculating email sending capacity walks through choosing the right plan for your agency's volume.
Google Workspace: The premium (but expensive) standard
Google Workspace remains the "safe" choice with native Gmail deliverability and high trust scores. The problem is cost.
Pricing: $7.00-$8.40 per user monthly depending on billing commitment
Cost at scale:
50 inboxes: $420/month
100 inboxes: $840/month
200 inboxes: $1,680/month
The other challenge: Gmail isn't designed for bulk or cold email marketing. Google's terms of service restrict high-volume outbound campaigns, and account bans are common for agencies pushing limits.
If you're running legitimate cold outreach at scale, Google Workspace creates both cost pressure and compliance risk.
Mailforge: A middle-ground contender
Mailforge offers pricing starting at roughly $3.00 per mailbox, with volume discounts dropping to around $1.67 for bulk users.
The catch: Mailforge uses a distributed shared IP pool-My-Hands-On-Test-of-This-Cold-Email-Infrastructure-AI/), distributing mailbox accounts among millions of businesses. While designed specifically for cold email by outreach experts, you're still exposed to other users' sending behavior.
Mailforge does include automatic SPF, DKIM, and DMARC setup. The Mailreef vs Mailscale vs Inframail comparison video breaks down how these platforms differ on IP infrastructure.
Mailscale: The tiered pricing model
Mailscale uses tiered pricing that still penalizes growth:
Solopreneur: $79/month for 15 email accounts ($5.26 per account)
Business: $119/month for 50 email accounts ($2.38 per account)
Enterprise: $249/month for 200 email accounts ($1.24 per account)
Mailscale relies on shared IP infrastructure, creating the same deliverability risks as Maildoso. Domain pricing also raises concerns, with some users reporting $15 for .com domains despite FAQ pages listing $9-13.
Comparison: Inframail vs. Maildoso vs. Google Workspace
Here's the side-by-side breakdown for agencies evaluating infrastructure options:
Factor | Inframail | Maildoso | Google Workspace |
100 Inboxes Cost | $129/month | ~$229/month | $840/month |
IP Type | Dedicated (1-3 IPs) | Shared pool | N/A |
Setup Time | 2-5 minutes | 10-15 minutes | Variable |
DNS Automation | Full (SPF/DKIM/DMARC) | Included | Manual |
The cost difference compounds over time. At 200 inboxes, you save $329/month with Inframail versus Maildoso, and $1,551/month versus Google Workspace.
"I've been using Inframail for a couple of months and the experience has been really good. I can set-up inboxes in 5mins while saving money on Google Workspace subscriptions and benefit from great deliverability." - Verified user review of Inframail
For agencies booking consistent meetings, the infrastructure investment pays off quickly. Watch how one user books 200+ appointments per month using Inframail infrastructure, or how another signed a $50,000 whale client with cold email campaigns.
How to migrate from Maildoso without pausing campaigns
Switching infrastructure doesn't mean stopping active campaigns. Here's the process for a smooth transition.
Step 1: Export data and secure domains
Before canceling Maildoso, download all lead lists and campaign data you need to preserve.
For domains purchased through Maildoso, you'll retain full ownership even after cancellation. To transfer domains to a new registrar:
Unlock the domain in your Maildoso dashboard
Obtain the authorization code (AuthInfo code) from the current registrar
Initiate the transfer with your new registrar
Note that ICANN rules prevent transfers within 60 days of initial registration or recent contact information changes. Plan your migration timeline accordingly.
Step 2: Automate DNS setup on the new platform
This is where Inframail's automation shines. Instead of manually configuring DNS records across Namecheap or GoDaddy, the platform handles SPF, DKIM, and DMARC configuration automatically.
Watch our SPF, DKIM, and DMARC setup tutorial for a 2-minute walkthrough of configuring 10+ inboxes.
The Ultimate Cold Email Infrastructure Guide covers the complete workflow from domain purchase through campaign launch.
Step 3: The warmup transition period
Dedicated IPs require a warmup period to establish sending reputation. This is standard for any new infrastructure.
Our warmup guide for Inframail migrations walks through the process. Key points:
Use an incremental migration approach to reduce downtime risk
Run pilot migrations with a few domains before moving your entire portfolio
Maintain parallel sending capability during the transition window
Inframail integrates with major email platforms including Instantly and Smartlead, so credential export is straightforward.
"I've been an Inframail customer since early 2024 and am very pleased with Kidous and his team. They are trustworthy and reliable. Their customer support is excellent." - Verified user review of Inframail
Final verdict: When to switch
The decision matrix is straightforward:
Stay on Maildoso if:
You run fewer than 20 inboxes
Per-inbox costs don't impact your margins
Shared IP deliverability variance is acceptable for your campaigns
Switch to Inframail if:
You manage 50+ inboxes across multiple clients
Infrastructure costs consume more than 25% of client billings
You need dedicated IPs to isolate sending reputation
Manual DNS configuration is eating hours of operational time
For agencies at scale, the math favors flat-rate pricing. At 200 inboxes, you're saving $329/month versus Maildoso and $1,551/month versus Google Workspace. That's money that goes back into margin or growth.
"So affordable that it will make your unit economics work, even for lower ticket b2b businesses like ours" - Verified user review of Inframail
Watch how agencies are booking 30+ calls monthly or generating 6 calls per day with proper infrastructure in place.
Sign up to Inframail and get started today. Inframail is trusted by agencies worldwide, with 38 5-star reviews on Trustpilot here.
Frequently Asked Questions
Does Inframail include email warmup?
Warmup is available on Unlimited and Agency plans. Some agencies also layer external warmup tools (e.g., Warmbox or Instantly warmup) for additional control during large migrations.
Can I transfer domains purchased through Maildoso?
Yes. You retain full ownership of domains purchased through Maildoso. Standard ICANN transfer rules apply, which means you'll need to wait 60 days after initial registration before transferring to a new registrar.
What's the cost difference for 100 inboxes?
Maildoso costs approximately $229/month for 100 inboxes. Inframail costs $129/month for unlimited inboxes. Google Workspace costs $840/month. You save $100/month versus Maildoso and $711/month versus Google Workspace at this scale.
How long does Inframail setup take?
Users report setting up 10 inboxes in 5-10 minutes with automated DNS configuration. Contrast this with 12-15 hours of manual DNS work for 50 domains on traditional setups.
What sending platforms work with Inframail?
Inframail provides IMAP/SMTP credentials that export to CSV for import into Instantly, Smartlead, and other compatible email platforms.
Key terms glossary
Shared IP: Multiple users send emails from the same IP address. Your deliverability depends partly on other users' sending behavior.
Dedicated IP: A private IP address assigned exclusively to your account. Your sending reputation is isolated from other users on the platform.
DNS propagation: The time required (typically 24-48 hours) for DNS record changes to spread across global servers. Automated platforms handle this configuration instantly.
Flat-rate pricing: A fixed monthly fee regardless of inbox count, contrasted with per-inbox models that charge based on volume.
SPF/DKIM/DMARC: Email authentication protocols that verify sender identity and protect against spoofing. Proper configuration improves inbox placement rates.
