Mailforge vs Infraforge: the same Forge SMTP mailbox on shared or dedicated IPs
Both are Salesforge products selling SMTP/IMAP mailboxes with automatic DNS, the same 10-slot minimum and the same no-refund terms. Mailforge puts you on shared IPs and bills monthly; Infraforge gives you dedicated IPs for about a dollar more per mailbox and bills only quarterly or yearly.
- Warm-up and sending included
- $2.50 a mailbox, 12 minimum
- Month-to-month billing
Mailforge
Infraforge
- Price per mailbox
- from $1.67 (yearly, 1,000+ slots); $3 monthly on small ordersfrom $2.50 (yearly, 1,000+ slots); $4 on small quarterly orders
- Smallest order
- 10 mailbox slots, $30 a month, plus domains10 mailbox slots, $120 a quarter, plus domains
- Mailbox types
- SMTPSMTP
- Warm-up
- Not in Mailforge; Warmforge is a separate Forge productRequired unless pre-warmed; Forge points to Warmforge, a separate product
Mailforge vs Infraforge, line by line
Each cell links to the vendor's page it comes from.
| Feature | Mailforge | Infraforge |
|---|---|---|
| Smallest order | 10 mailbox slots, $30 a month, plus domains source (opens the vendor's page in a new tab) | 10 mailbox slots, $120 a quarter, plus domains source (opens the vendor's page in a new tab) |
| Setup time | Under 10 minutes for domains and mailboxes, per the home page source (opens the vendor's page in a new tab) | First domain and mailbox in 5 minutes, per the home page source (opens the vendor's page in a new tab) |
| Mailbox types | SMTP/IMAP on shared IPs; Google and Microsoft are Primeforge, a separate product source (opens the vendor's page in a new tab) | SMTP/IMAP on dedicated IPs source (opens the vendor's page in a new tab) |
| Domains | .com $14 a year or your own; transfer out through support after the registrar lock source (opens the vendor's page in a new tab) | .com $14 a year or your own; transfer out through support source (opens the vendor's page in a new tab) |
| Sending limits | 30 emails per mailbox a day recommended, 100 at most; 2–3 mailboxes per domain source (opens the vendor's page in a new tab) | 30 cold emails per mailbox a day recommended (100 max), up to 40 mailboxes per IP source (opens the vendor's page in a new tab) |
| Warm-up | Partly, or at extra costNot in Mailforge; Warmforge is a separate Forge product source (opens the vendor's page in a new tab) | Partly, or at extra costRequired unless pre-warmed; Forge points to Warmforge, a separate product source (opens the vendor's page in a new tab) |
| Sequencers | No sequencer; CSV for Instantly and Smartlead, native import to Salesforge source (opens the vendor's page in a new tab) | No sequencer; export to Salesforge, CSV for Smartlead and other tools source (opens the vendor's page in a new tab) |
| API | IncludedPublic REST API: workspaces, domains, DNS, masking, mailboxes, analytics source (opens the vendor's page in a new tab) | IncludedAPI in the subscription: IPs, domains, mailboxes, exports; no rate limit enforced today source (opens the vendor's page in a new tab) |
| MCP server | IncludedThe shared Forge MCP server covers Mailforge domains, mailboxes and DNS source (opens the vendor's page in a new tab) | IncludedThe shared Forge MCP server covers Infraforge workspaces, domains, mailboxes, DNS source (opens the vendor's page in a new tab) |
| Support | Live chat support source (opens the vendor's page in a new tab) | Live chat support source (opens the vendor's page in a new tab) |
| Refunds | No refunds across Forge products; cancel by live chat at least 7 days before the term ends source (opens the vendor's page in a new tab) | No refunds across Forge products; cancel by live chat at least 7 days before the term ends source (opens the vendor's page in a new tab) |
| Trial | No free trial; the app can be explored before buying source (opens the vendor's page in a new tab) | No free trial source (opens the vendor's page in a new tab) |
Smallest order
- Mailforge
- 10 mailbox slots, $30 a month, plus domains source (opens the vendor's page in a new tab)
- Infraforge
- 10 mailbox slots, $120 a quarter, plus domains source (opens the vendor's page in a new tab)
Setup time
- Mailforge
- Under 10 minutes for domains and mailboxes, per the home page source (opens the vendor's page in a new tab)
- Infraforge
- First domain and mailbox in 5 minutes, per the home page source (opens the vendor's page in a new tab)
Mailbox types
- Mailforge
- SMTP/IMAP on shared IPs; Google and Microsoft are Primeforge, a separate product source (opens the vendor's page in a new tab)
- Infraforge
- SMTP/IMAP on dedicated IPs source (opens the vendor's page in a new tab)
Domains
- Mailforge
- .com $14 a year or your own; transfer out through support after the registrar lock source (opens the vendor's page in a new tab)
- Infraforge
- .com $14 a year or your own; transfer out through support source (opens the vendor's page in a new tab)
Sending limits
- Mailforge
- 30 emails per mailbox a day recommended, 100 at most; 2–3 mailboxes per domain source (opens the vendor's page in a new tab)
- Infraforge
- 30 cold emails per mailbox a day recommended (100 max), up to 40 mailboxes per IP source (opens the vendor's page in a new tab)
Warm-up
- Mailforge
- Partly, or at extra costNot in Mailforge; Warmforge is a separate Forge product source (opens the vendor's page in a new tab)
- Infraforge
- Partly, or at extra costRequired unless pre-warmed; Forge points to Warmforge, a separate product source (opens the vendor's page in a new tab)
Sequencers
- Mailforge
- No sequencer; CSV for Instantly and Smartlead, native import to Salesforge source (opens the vendor's page in a new tab)
- Infraforge
- No sequencer; export to Salesforge, CSV for Smartlead and other tools source (opens the vendor's page in a new tab)
API
- Mailforge
- IncludedPublic REST API: workspaces, domains, DNS, masking, mailboxes, analytics source (opens the vendor's page in a new tab)
- Infraforge
- IncludedAPI in the subscription: IPs, domains, mailboxes, exports; no rate limit enforced today source (opens the vendor's page in a new tab)
MCP server
- Mailforge
- IncludedThe shared Forge MCP server covers Mailforge domains, mailboxes and DNS source (opens the vendor's page in a new tab)
- Infraforge
- IncludedThe shared Forge MCP server covers Infraforge workspaces, domains, mailboxes, DNS source (opens the vendor's page in a new tab)
Support
- Mailforge
- Live chat support source (opens the vendor's page in a new tab)
- Infraforge
- Live chat support source (opens the vendor's page in a new tab)
Refunds
- Mailforge
- No refunds across Forge products; cancel by live chat at least 7 days before the term ends source (opens the vendor's page in a new tab)
- Infraforge
- No refunds across Forge products; cancel by live chat at least 7 days before the term ends source (opens the vendor's page in a new tab)
Trial
- Mailforge
- No free trial; the app can be explored before buying source (opens the vendor's page in a new tab)
- Infraforge
- No free trial source (opens the vendor's page in a new tab)
Mailforge and Infraforge prices
Mailforge
| Plan | Price | Mailboxes | Per mailbox | Billing | Includes |
|---|---|---|---|---|---|
| Mailbox slots, 1–100 add-on | $3 a mailbox a month | 10 base + up to 100 | $3.00 | monthly | Automatic DNS, hosting, support source (opens the vendor's page in a new tab) |
| Mailbox slots, volume tiers | $2.90 down to $2.00 a mailbox | 101+ add-on slots, $0.10 less per 100 | $2.00–$2.90 | monthly | The 10 base slots stay at $3 source (opens the vendor's page in a new tab) |
| SSL and domain masking | $2 a domain a month | n/a | monthly | SSL redirect and masking source (opens the vendor's page in a new tab) |
Infraforge
| Plan | Price | Mailboxes | Per mailbox | Billing | Includes |
|---|---|---|---|---|---|
| Mailbox slots, 1–100 add-on | $12 a mailbox a quarter | 10 base + up to 100 | $4.00 | quarterly | Automatic DNS, hosting, support, API source (opens the vendor's page in a new tab) |
| Mailbox slots, volume tiers | $11.70 down to $9 a quarter | 101+ add-on slots | $3.00–$3.90 | quarterly | The 10 base slots stay at the first-tier price source (opens the vendor's page in a new tab) |
| Mailbox slots, yearly | $40 down to $30 a mailbox a year | 10+ | $2.50–$3.33 | yearly | Two months free on mailboxes source (opens the vendor's page in a new tab) |
| Extra dedicated IP | $99 a month | up to 40 mailboxes per IP recommended | n/a | quarterly | Another sending IP source (opens the vendor's page in a new tab) |
| Masterbox | $7–9 a workspace a month | n/a | yearly or quarterly | One inbox across a workspace's mailboxes source (opens the vendor's page in a new tab) | |
| SSL and domain masking | $2 a domain a month | n/a | quarterly ($6 a year on yearly) | SSL redirect and masking source (opens the vendor's page in a new tab) |
List prices from Mailforge's pricing page and Infraforge's pricing page, checked . Taxes and card fees excluded.
Cost at 25 and 100 mailboxes
25 mailboxes: Mailforge's calculator shows $75 a month on monthly billing. Infraforge's shows $100 a month, paid as $300 a quarter, or $83 a month on yearly billing.
100 mailboxes: Mailforge is $300 a month (every slot under 110 is $3). Infraforge is $1,200 a quarter, $400 a month. An extra dedicated IP is $99 a month, and Forge recommends at most 40 mailboxes per IP.
Domains cost $14 a year on both, and SSL with domain masking $2 a domain a month.
Where they differ
What the dedicated IP buys
Forge's own comparison says Mailforge deliverability can depend on other users' activity. Infraforge removes that dependency, so a bad neighbour cannot hurt you, and gives you sole responsibility for the IP's reputation.
Infraforge's home page says each mailbox gets a dedicated IP; the help center describes a dedicated IP per setup. Ask before you size an order on it.
Everything else is shared
Same 30-a-day recommended limit (100 at most) and 2 to 3 mailboxes per domain, same Warmforge for warm-up and Salesforge for sending, same Forge MCP server and API style, same rule to cancel by chat seven days before the term ends.
Which one to pick
Pick Mailforge if
- Price matters more than IP isolation
- You want monthly billing
- You are testing with a small order
Pick Infraforge if
- You want reputation that only your sending affects
- You can commit to quarterly or yearly billing
- You run up to 40 mailboxes per IP and add IPs as you grow
Where Outreach2day fits
We sell cold email mailboxes too, so this section is ours. The comparison above does not rank us.
With either Forge product the mailbox is one bill and warm-up and sending are two more. Our mailboxes are SMTP/IMAP too, at $2.50 with warm-up and a sending engine included and monthly billing: 25 mailboxes cost $62.50, 100 cost $250. We have no dedicated-IP option.
From 1,000 mailboxes Outreach2day quotes a volume price below the per-mailbox list price of every vendor in our comparisons, including Maildoso's $0.49, with warm-up and sending in the price. Book a call and we quote your volume.
Mailforge vs Infraforge: questions
What is the difference between Mailforge and Infraforge?
Both sell Forge SMTP mailboxes. Mailforge runs on shared IPs, from $3 down to $2 a month, billed monthly or yearly. Infraforge runs on dedicated IPs, from $4 down to $3 a month, billed quarterly or yearly.
Is Infraforge worth the extra cost?
If other senders on a shared IP are a risk you cannot take, yes. Forge itself says Mailforge deliverability can depend on other users.
Can I pay Infraforge monthly?
No. Infraforge bills quarterly or yearly.
Do Mailforge or Infraforge include warm-up?
No. Both point to Warmforge, a separate Forge subscription.
Deliverability call
Talk to our deliverability team
Book a call with the people who run our mailbox infrastructure. We look at your current setup and tell you what to change. Running 1,000+ mailboxes? We also quote a volume price below every vendor list price in our comparisons, warm-up and sending included.
- Review your domains, DNS records and current inbox placement
- Size the setup: domains, mailboxes per domain and daily volume per mailbox
- Plan warm-up and the move from your current provider or sequencer
- 1,000+ mailboxes: a volume price per mailbox for your setup
Free call
See open times in your time zone and book on this page.
Or open the booking pageLoading available times…
Open the booking page insteadMore on Mailforge and Infraforge
- Mailforge reviewPlans, limits, warm-up, API and MCP, support and refunds, with sources
- Mailforge alternativesOptions side by side with prices and mailbox types
- Outreach2day vs MailforgeFeature table and full-setup cost
- Mailforge vs InboxKitTwo vendors side by side
- Mailforge pricing 2026Every plan and what it costs at 25, 100 and 400 mailboxes
- Infraforge pricing 2026Every plan and what it costs at 25, 100 and 400 mailboxes
- SMTP for Cold Email: Mailbox, Relay or Self-HostedBlog
- Email Warm-Up Service: What It Does and CostsBlog
Sources
Each vendor's own pages. Vendors change prices and plans; if something here is out of date, write to support@outreach2day.com and we will fix it.
Mailforge
- mailforge.ai/pricing
- mailforge.ai/about
- help.salesforge.ai/en/articles/10333653-cancellation-process-subscription-renewals-invoices-and-refunds
- mailforge.ai
- help.salesforge.ai/en/articles/10333591-choosing-between-mailforge-vs-infraforge-vs-primeforge
- mailforge.ai/llms.txt
- help.salesforge.ai/en/articles/10333535-how-to-import-mailforge-mailboxes-to-instantly
- help.salesforge.ai/en/articles/10333644-how-to-use-the-mailforge-api
- help.salesforge.ai/en/articles/10333582-salesforge-mcp-server-with-claude-for-cold-email-and-linkedin-outreach
- trustpilot.com/review/mailforge.ai
- g2.com/products/mailforge/reviews
Infraforge
- infraforge.ai/pricing
- mailforge.ai/about
- help.salesforge.ai/en/articles/10333653-cancellation-process-subscription-renewals-invoices-and-refunds
- help.salesforge.ai/en/articles/10333635-what-are-pre-warmed-domains-and-mailboxes
- infraforge.ai
- help.salesforge.ai/en/articles/10333591-choosing-between-mailforge-vs-infraforge-vs-primeforge
- help.salesforge.ai/en/articles/10333587-infraforge-how-to-use-it-for-maximum-deliverability
- help.salesforge.ai/en/articles/10333649-forge-api-and-mcp-rate-limits-authentication-and-known-gaps
- help.salesforge.ai/en/articles/10333582-salesforge-mcp-server-with-claude-for-cold-email-and-linkedin-outreach
- infraforge.ai/whitelabel
- trustpilot.com/review/infraforge.ai
- g2.com/products/infraforge/reviews
First cold emails on day 14, full volume on day 21
Add domains, create mailboxes and turn on warm-up. You see every mailbox's warm-up numbers from day one.