Alternatives
Mar 4, 2026
CEO and co-founder
Infraforge Alternatives: Best Cold Email Solutions in 2026
Updated March 2, 2026
TL;DR: Infraforge.ai offers private cold email infrastructure with slot-based pricing starting at $33-40/month for 10 mailboxes, but dedicated IPs cost an additional $99/month. For agencies managing 50-200+ inboxes, our flat-rate $129/month pricing delivers dedicated IP benefits without linear cost scaling. Both platforms automate DNS setup in minutes, but our Microsoft-backed infrastructure and unlimited inbox model protect your margins as client count grows. One critical note: Infraforge.ai (cold email) is a completely separate company from Infraforge.io (financial infrastructure for banking). Verify you're evaluating the right platform before committing.
If you're running a lead gen agency and your Google Workspace bill keeps climbing, you've probably stumbled across Infraforge while hunting for alternatives. The promise of dedicated IPs and automated DNS setup is appealing after spending hours configuring SPF/DKIM/DMARC records manually. But before you commit $200-500 to test a new platform, you need clarity on pricing models, deliverability expectations, and which infrastructure actually protects your margins at scale. We break down Infraforge.ai against the top alternatives for agencies sending cold email in 2026.
Why agencies look for Infraforge alternatives
Agencies research alternatives for three core reasons:
Brand confusion: Infraforge.ai (cold email) vs Infraforge.io (banking) creates procurement risk
Cost scaling: Per-inbox pricing models break unit economics past 50 clients
Deliverability control: Dedicated IPs isolate sender reputation from shared pool damage
The confusion: Infraforge.ai vs. Infraforge.com
Before evaluating any platform, you need to distinguish between two completely separate businesses sharing similar names.
Infraforge.ai is the cold email infrastructure platform. According to their homepage, they're "built specifically for cold email outreach" with dedicated IPs and automatic technical setup. This is the tool agency owners evaluate for cold outreach.
Infraforge.io/com operates in a completely different space. Their site states they "specialize in industries where technology cannot fail, where compliance isn't optional" with focus on core banking, payments, and PCI/PSD2/DORA compliance. This is financial infrastructure for regulated industries like banking and insurance.
Why the distinction matters: Searching "Infraforge pricing" or "Infraforge reviews" can surface information about the wrong company entirely. Always verify you're on infraforge.ai when researching cold email solutions.
Cost scaling and margin squeeze
The core problem driving agencies away from Google Workspace isn't deliverability. It's unit economics.
At 50 inboxes, Google Workspace costs $350-420/month at $7-8.40 per seat. Scale to 100 inboxes and you're paying $700-840/month. At 200 inboxes across 15-20 clients, infrastructure alone consumes $1,400-1,680/month before domains, warmup tools, or sending platforms.
The cost scaling breaks down as:
50 inboxes: $350-420/month (8-21% of a single $2,000-5,000 client)
100 inboxes: $700-840/month (14-42% of single client revenue)
200 inboxes: $1,400-1,680/month (28-84% of single client revenue)
For agencies billing $2,000-5,000/month per client, infrastructure at $420/month consumes 8-21% of a single client's revenue. That percentage compounds when you're managing 8-15 clients simultaneously.
Infraforge.ai addresses this with slot-based pricing. According to their pricing page, slots start at $40/month for 10 mailbox slots (quarterly) or $33/month for 10 slots (annual), working out to $3.30-4 per mailbox. However, the model still scales linearly, and dedicated IPs require an additional $99/month add-on.
We take a different approach with flat-rate $129/month for unlimited inboxes. Whether you run 50 or 200 accounts, the platform fee stays constant.
Deliverability control and dedicated IPs
Private cold email infrastructure means your email accounts operate on isolated servers and IP addresses. Unlike shared platforms like Gmail or Outlook, where your sender reputation gets affected by other users' behavior, dedicated infrastructure gives you complete control.
The distinction between dedicated and shared IPs matters significantly for cold outreach. As explained in this Dedicated IP vs Shared IP video, shared IP pools distribute your mailbox accounts among millions of businesses. If another sender on your shared IP starts spamming, your deliverability suffers. Dedicated IPs isolate your reputation so your sending behavior alone determines inbox placement.
Both Infraforge.ai and we offer dedicated IP infrastructure. Mailforge operates on shared IP pools similar to Gmail or Outlook.
Top 5 Infraforge alternatives for cold email agencies
Choose from these five platforms based on your scale, budget, and deliverability requirements:
1. Inframail: Best for flat-rate scaling and dedicated IPs
We provide Microsoft-backed email infrastructure at $129/month flat-rate for unlimited inboxes on dedicated IPs. Our platform automates SPF, DKIM, and DMARC configuration, eliminating manual DNS panel work.
Pricing: $129/month (Unlimited Plan) with 1 dedicated IP. Agency Pack includes 3 dedicated IPs.
Key features:
We automate DNS setup in under 5 minutes
We run on Microsoft cloud infrastructure
We export IMAP/SMTP credentials to Instantly, Smartlead, or other sending platforms
We include dedicated IPs per plan (not shared pools)
Best for: Agencies managing 50-200+ inboxes who need predictable infrastructure costs. We protect your margins regardless of client count growth.
One user describes the setup experience clearly:
"Easiest way to cold email... Their platform did in 10 minutes what would've taken me days to figure out. Maybe weeks. We're talking full infrastructure... The ROI on this is stupid good. We're saving cash and more importantly, we're saving time." - Verified user review of Inframail (38 5-star reviews on [Trustpilot](https://www.trustpilot.com/review/inframail.io))
Our cold email platform page details the full setup workflow for agencies scaling outreach.
2. Google Workspace: Best for deliverability (at a premium)
Google Workspace remains the gold standard for sender reputation. Gmail accounts carry inherent trust with receiving mail servers, translating to strong inbox placement rates out of the box.
Pricing: $7-8.40/month per user for Business Starter depending on annual or monthly billing.
Key features:
Native Gmail deliverability reputation
Full Google ecosystem integration (Drive, Calendar, Meet)
30GB storage per user
Trade-off: The per-seat pricing that makes Google viable for 10-20 inboxes becomes a margin killer at scale. 100 inboxes costs $700-840/month. You also need separate warmup tools since Google doesn't include automated warmup for cold outreach.
Best for: Small operations running fewer than 20 inboxes where deliverability reputation outweighs cost concerns.
3. Mailforge: Best for budget-conscious shared infrastructure
Mailforge offers the lowest per-mailbox pricing in the market, starting at $2-3 per mailbox per month. The trade-off: Mailforge runs on shared IP pools, not dedicated infrastructure.
Pricing: $2-3 per mailbox monthly. Domains separate at approximately $70/year per .com. Minimum 10 mailbox slots required.
Key features:
Extremely low per-mailbox costs
Automated DNS configuration
SSL and domain masking available ($2-6 per domain)
Trade-off: Mailforge uses shared IP pools distributing mailboxes among millions of businesses. Your sender reputation depends partly on other senders' behavior, similar to Gmail or Outlook. For agencies needing maximum reputation control, shared infrastructure introduces risk.
Our Mailforge alternative page provides detailed feature-by-feature analysis.
Best for: Budget-constrained operations prioritizing cost over dedicated IP isolation.
4. Maildoso: Best for managed cloud inboxes with included domains
Maildoso bundles domains with mailbox subscriptions, simplifying procurement. Pricing starts at $100/month for 32 mailboxes including 8 domains.
Pricing tiers (quarterly billing):
Mailboxes | Quarterly Cost | Per Mailbox | Included Domains |
|---|---|---|---|
32 | $299 | $3.10 | 8 |
68 | $499 | $2.40 | 17 |
400 | $2,199 | $1.80 | 100 |
Key features:
Domains included in subscription
Monthly billing available at $100/month entry tier
AI warmup available as add-on ($160-2,000/month)
Trade-off: User feedback on Maildoso is mixed. According to Salesforge's analysis, complaints center on "burned domains (.xyz, .click), poor deliverability, and blocklisting (SURBL)." The AI warmup add-on costs can significantly increase TCO.
Best for: Operations wanting domain procurement bundled with mailboxes who can accept shared infrastructure trade-offs.
5. Microsoft 365 / Outlook: Best for enterprise compliance
Direct Microsoft 365 subscriptions provide Outlook inboxes without third-party intermediaries. The platform carries strong enterprise reputation but enforces strict sending limits.
Pricing: $6-12.50/user monthly depending on plan tier.
Key limitations for cold email:
Microsoft tracks "non-relationship recipients" (people you've never emailed) with daily limits of 1,000 cold contacts. The platform also caps sending at 30 emails per minute and 500 recipients per message.
Best for: Enterprise teams requiring compliance and willing to accept volume constraints.
Head-to-head comparison: Inframail vs. Infraforge vs. Google Workspace
Total cost of ownership (TCO) analysis
The table below shows platform-only costs across three common agency scales. These figures exclude domain costs ($5-16/year each) and warmup tools ($15-50/month per inbox), which apply to all providers. Notice how per-inbox models compound as you scale, while our flat-rate stays constant.
Provider | 50 Inboxes | 100 Inboxes | 200 Inboxes |
|---|---|---|---|
Inframail | $129/mo flat | $129/mo flat | $129/mo flat |
Infraforge.ai (base slots) | $165-200/mo | $330-400/mo | $660-800/mo |
Infraforge.ai + dedicated IP | $264-299/mo | $429-499/mo | $759-899/mo |
Google Workspace (annual) | $350/mo | $700/mo | $1,400/mo |
Google Workspace (monthly) | $420/mo | $840/mo | $1,680/mo |
Mailforge | $150/mo | $300/mo | $600/mo |
Note: Infraforge.ai pricing based on their published slot structure ($33-40/month per 10 slots) plus $99/month for dedicated IP add-on. Domain costs and warmup tools are additional across all platforms.
The cost differential becomes stark at scale. Moving from 50 to 200 inboxes on Google Workspace adds $1,050-1,260/month in infrastructure spend. The same scaling on our platform adds $0 to platform fees.
Our ROI calculator provides editable TCO modeling for your specific client count.
Setup time and DNS automation
Manual Google Workspace setup requires:
Domain purchase from registrar (Namecheap, GoDaddy, etc.)
Workspace account creation for each inbox
DNS panel access for SPF/DKIM/DMARC configuration
SPF record creation (v=spf1 include:spf.protection.outlook.com ~all)
DKIM key generation and DNS record addition
DMARC policy configuration for authentication
24-48 hour propagation wait for DNS changes
For agencies managing 50+ domains, this manual process creates a significant operational bottleneck.
Both Infraforge.ai and we automate this process. Infraforge.ai states "Your first domain and mailbox can be ready in 5 minutes" with automatic DMARC, SPF, and DKIM configuration.
Our users report similar speeds. The Infraforge vs Inframail video demonstrates both platform workflows side-by-side.
"The setup is ridiculously fast. SPF, DKIM, DMARC, forwarding - all handled in literally seconds without me having to dig through docs or guess what records to add." - Verified user review of Inframail (38 5-star reviews on [Trustpilot](https://www.trustpilot.com/review/inframail.io))
Our getting started guide walks through the complete inbox creation workflow.
Deliverability and IP reputation
Sender reputation determines whether your emails reach the inbox or spam folder. Email providers like Gmail and Outlook score your sending behavior based on:
Authentication (SPF/DKIM/DMARC passing)
Bounce rates
Spam complaints
Engagement rates (opens, replies)
IP history
Dedicated IPs isolate your reputation. Your behavior alone determines your deliverability. If you maintain clean lists and reasonable volumes, your reputation stays strong regardless of what other cold emailers do.
Shared IPs pool your reputation with other senders. One bad actor on your shared range can tank deliverability for everyone. Platforms like Mailforge operate on shared pools similar to Gmail or Outlook.
Both we and Infraforge.ai offer dedicated IP infrastructure. We provide 1 dedicated IP on the Unlimited Plan and 3 IPs on our Agency Pack, built on Microsoft cloud. Infraforge.ai assigns dedicated IPs but charges $99/month extra for the dedicated IP add-on according to their pricing page.
For agencies scaling cold outreach, this Dedicated IP vs Shared IP video explains the reputation implications in detail.
Our warmup guide covers post-migration warmup best practices.
How to choose the right infrastructure for your agency
Use this decision framework based on your current scale and growth trajectory. Match your situation to the right platform:
1. Choose Google Workspace if:
You run fewer than 20 inboxes
Deliverability reputation matters more than cost
You have technical staff for manual DNS configuration
You're not scaling past 30 accounts in the next 12 months
2. Choose us (Inframail) if:
You manage 50-200+ inboxes across multiple clients
Margin protection matters as you scale
You want dedicated IPs without per-mailbox fees (we include them)
You need automated DNS to eliminate setup bottlenecks (we handle it in under 5 minutes)
3. Choose Infraforge.ai if:
You prefer per-mailbox pricing predictability
You're comfortable with slot-based billing (minimum 10)
You want the Salesforge ecosystem integration
You can budget for dedicated IP add-ons ($99/month)
4. Choose Mailforge if:
Budget is the primary constraint
You accept shared IP trade-offs
You're testing cold email before scaling
You have existing warmup infrastructure
Our why infrastructure page explains when dedicated infrastructure becomes necessary versus standard ESP solutions.
For agencies booking calls consistently through cold email, this user interview on calls demonstrates real campaign results.
Quick decision checklist
We've positioned ourselves in the table below as "Inframail" for easy comparison:
Factor | Google Workspace | Inframail | Infraforge.ai | Mailforge |
|---|---|---|---|---|
Best at scale | No | Yes | Moderate | Moderate |
Dedicated IPs | No | Yes (included) | Yes (add-on $99/mo) | No |
DNS automation | No | Yes | Yes | Yes |
Flat-rate pricing | No | Yes | No | No |
Min. commitment | Per seat | Monthly | 10 slots | 10 slots |
Get started with flat-rate infrastructure
For agencies scaling cold email beyond 50 accounts, flat-rate infrastructure protects margins while dedicated IPs maintain deliverability. Stop paying per inbox.
Sign up to Inframail and get started today with unlimited inboxes on dedicated IPs for $129/month.
We handle DNS automation, Microsoft cloud infrastructure, and IMAP/SMTP credential exports to your sending platform of choice. Setup takes under 10 minutes.
"InfraMail makes it remarkably easy to purchase domains, configure them correctly, create inboxes, and initiate warm-up immediately. The level of automation is exceptional and clearly designed for serious operators; it removes friction and allows you to focus on execution rather than setup." - Verified user review of Inframail (38 5-star reviews on [Trustpilot](https://www.trustpilot.com/review/inframail.io))
Watch the full Inframail 3.5 demo to see the complete workflow from domain purchase to live inbox.
Frequently asked questions
What is Infraforge?
Infraforge.ai is a private cold email infrastructure platform offering dedicated IPs and automated DNS setup with slot-based pricing starting at $33-40/month for 10 mailboxes. Note that Infraforge.io/com is a completely separate company providing financial infrastructure for banking and compliance. Always verify you're on infraforge.ai for cold email solutions.
What are the main features of Infraforge?
Infraforge.ai provides dedicated IP addresses (as a $99/month add-on), automated DMARC/SPF/DKIM configuration, pre-warmed domains, multi-IP distribution, domain masking with SSL, and the Warmforge warming tool. The platform integrates with the broader Salesforge ecosystem.
How does Infraforge pricing work?
Infraforge.ai uses slot-based pricing with a minimum of 10 mailbox slots required. Slots start at $40/month (quarterly) or $33/month (annually) for 10 slots, working out to $3.30-4 per mailbox. Dedicated IPs cost an additional $99/month.
What are the alternatives to Infraforge?
Top alternatives include us at Inframail ($129/month flat-rate unlimited), Google Workspace ($7-8.40/inbox), Mailforge ($2-3/mailbox shared IPs), and Maildoso ($100/month for 32 mailboxes with included domains).
How does Infraforge support cold email deliverability?
Infraforge.ai offers dedicated IP addresses as an add-on, isolating your sender reputation from other users. The platform automatically configures DNS authentication records (SPF, DKIM, DMARC) and offers built-in warmup through Warmforge.
What email platforms work with Inframail?
We integrate with major cold email sending platforms including Instantly, Smartlead, Lemlist, and others via IMAP/SMTP credential exports.
Key terminology
Private cold email infrastructure: Dedicated email sending systems operating on isolated servers and IP addresses. Your sender reputation stays independent from other users' sending practices. Both we and Infraforge.ai offer private infrastructure.
Dedicated IP: An IP address assigned exclusively to your email accounts. Your sending behavior alone determines reputation, unlike shared IPs where bad actors can damage deliverability for everyone on the same range.
Automated provisioning: The automated creation and configuration of email infrastructure without manual DNS panel work. Systems configure SPF, DKIM, and DMARC records automatically in minutes versus hours required for manual setup.
Sender reputation: A score assigned by email providers (Gmail, Outlook) based on authentication, bounce rates, spam complaints, and engagement. Good reputation means inbox delivery. Poor reputation means spam folder.
Multi-IP distribution: Spreading email sending across multiple IP addresses to manage volume safely. Allows scaling campaigns without overloading any single IP's daily sending capacity.
Automated warmup: Gradually increasing sending volume from new accounts by exchanging emails with trusted addresses. Builds positive sender history before ramping cold outreach. Prevents new accounts from immediate spam folder placement.
SPF/DKIM/DMARC: Email authentication protocols. SPF verifies sending servers. DKIM adds cryptographic signatures. DMARC sets policies for failed authentication. All three must pass for optimal deliverability.
Slot-based pricing: Billing model where you purchase mailbox capacity (slots) regardless of actual usage. If you buy 10 slots but create 5 mailboxes, you still pay for all 10. Used by Infraforge.ai and Mailforge.
