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Cold Email Cost: How Much Should You Budget for Outreach

Cold Email Cost: How Much Should You Budget for Outreach

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At some point, someone will ask what cold email costs each month. It might be your manager, finance team, or you checking your card statement. It’s a fair question, but pricing pages rarely answer it clearly.

A cold email software plan lists one price.  Mailboxes charge per seat, domains per year, and data per credit. Some products bill quarterly. 

None of these pages show what everything will cost at your planned volume.

That’s how budgets go wrong in both directions. Estimate too little, and you’re asking for more money a month later while campaigns sit paused. Estimate too much, and the channel may look too expensive to test.

I want you to enter that conversation with a number you can defend. So I’ve broken down the costs you’ll actually pay, priced them at three sending volumes, and shown how to build an estimate around the number of people you want to reach.

Table of Contents

TLDR: Calculating Cold Email Cost

If you only need a rough estimate, start here. This table shows the cost of cold email at three volumes, from an initial test to a scaled setup. I explain the assumptions behind each stage below. 

Stage Monthly Volume Setup Monthly Cost What Pushes It Up
Testing 300 contacts, 900 emails 10 Mailforge mailboxes on 4 domains, Salesforge Pro, Leadsforge $127, plus $56 a year for domains The 10-mailbox minimum, which is more than you need at this volume
Steady outbound 8,000 contacts, 16,000 emails 25 Mailforge mailboxes on 9 domains, Salesforge Growth, Leadsforge $220, plus $126 a year for domains Data and validation credits beyond what your plans include
Scaling 10,000 contacts, 30,000 emails 47 Infraforge mailboxes on 16 domains, 2 dedicated IPs, Salesforge Growth, Leadsforge $432, plus $224 a year for domains The second IP and more data credits

As your volume grows, your mailbox, IP, and data costs rise. Your Salesforge plan stays on Growth from steady outbound onward. Warmup costs nothing when you send through Salesforge. These prices are billed monthly, while annual plans cost less. 

What goes into the cost of cold email

A cold email budget has six main lines. Most grow with the number of people you want to reach each month. For each one, I’ll explain its purpose, price, and what drives the cost. 

Line Item What Sets the Amount How It's Billed
Domains Your mailbox count, at 2 to 3 mailboxes per domain Yearly
Mailboxes Your daily sending target, at about 30 emails per mailbox Monthly
Warmup Your mailbox count, unless it comes with Salesforge Monthly, quarterly or yearly
Sending software Emails and active contacts per month Monthly or yearly
Lead data Contacts you extract or enrich Monthly or yearly
Team time How much copy, list work, and reply handling you do Not invoiced

Sending domains

You need secondary domains so you don’t send from your main company domain. If enough prospects mark emails from your main domain as spam, the damage can affect every company email, including messages to customers and investors. In the worst case, Google may suspend your Workspace account and lock everyone out.

Domains are the cheapest part of the budget. A .com costs $14 a year through Mailforge and Infraforge, paid yearly. The number you need depends on your mailbox count because each domain should support only 2 to 3 mailboxes.

Mailboxes

Mailboxes make up most of your monthly infrastructure spend because you need many. Each should send no more than about 30 cold emails daily. Your sending target sets your mailbox count, which then sets this part of the budget.

Shared SMTP mailboxes on Mailforge start at $3 a month. Private Infraforge mailboxes cost $4, while Google or Microsoft mailboxes on Primeforge cost $4.50. A $1.50 difference seems small, but across 25 mailboxes it becomes $37.50 a month.

Warmup

New mailboxes need about two weeks of warmup before sending cold emails, and warmup should continue afterward. That makes it a monthly expense rather than a one-time setup cost.

If you use Salesforge, Warmforge email warm-up is included for every mailbox. Bought separately, Warmforge charges per mailbox slot:

  • $12 a month with monthly billing
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  • $10 a month with quarterly billing
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  • $9 a month with annual billing

One Google or Microsoft slot is free. Each subscription also includes one monthly placement test showing where your emails land with each provider. If you need more tests, plans start at $32.50/month. 

Sending software

Your sending tool has a monthly fee. With Salesforge, your required plan depends on volume, not mailbox count. Both plans support unlimited mailboxes, but their contact and email limits differ:

  • Pro costs $48/month or $40 with annual billing. It includes 1,000 active contacts in sequence and 5,000 emails per month.
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  • Growth costs $96/month or $80 with annual billing. It covers 10,000 active contacts and 50,000 memails per month with extra capacity available in the app.

Budget this line around how many emails you plan to send each month.

Lead data and email verification

Data costs cover two things: finding contacts and confirming their email addresses are valid.

Searching and filtering on Leadsforge is free. You use credits only when you extract or enrich a contact. A work email costs 1 credit, while a mobile number costs 10. Essential costs $49/month for 2,000 credits or $588/year for 28,000. Unused credits roll over. Avoid mobile numbers unless you plan to call because each costs as much as ten work emails.

Salesforge includes email verification. Pro provides 300 monthly validation credits, while Growth includes 1,000. If you contact more new people, you can buy additional credits in the app.

Your team's time

None of these tools runs itself. Someone must write sequences, build lists, monitor reply and bounce rates, and answer responses. Mailforge, Infraforge, and Primeforge automate DNS setup, reducing setup to minutes. 

Doing it manually can take days or weeks and involve your IT team. Most of your team’s time goes into ongoing work. Include it when comparing costs, even if it never appears on an invoice. 

How much cold email costs at different volumes

The budget lines stay the same at every volume, but the totals change. Below, I’ve priced three stages using current rates and these assumptions:

  • Everything uses monthly billing.
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  • Warmup comes free with Salesforge, so it adds no cost.
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  • Forge pricing calculators show that 25 mailboxes can handle 16,000 monthly emails, or roughly 640 emails per mailbox. I use that ratio to calculate mailbox needs at each stage.

Testing cold email for the first time

Suppose you want to reach 300 new contacts each month with a three-email sequence. That’s 900 emails, which two mailboxes could handle. However, Mailforge has a 10-mailbox minimum, so you start with 10 mailboxes across 4 domains and pay for unused capacity.

Salesforge Pro easily covers this stage. Its 5,000-email limit leaves room to grow, while its 300 validation credits cover every contact. 

Leadsforge’s 2,000 monthly credits are more than you need, but they roll over, so one month’s credits could last through several months of testing.

Running steady outbound

At 8,000 contacts with a two-email sequence, you send 16,000 emails each month. That exceeds Pro’s 5,000-email limit, so you need Growth. This matches the Mailforge calculator setup of 25 mailboxes across 9 domains.

Data and validation grow fastest at this stage. Leadsforge’s base plan covers 2,000 work emails, while Growth includes 1,000 validation credits. You’ll need to buy extra credits for the remaining 6,000 to 7,000 contacts.

If you prefer Google or Microsoft accounts, 25 Primeforge mailboxes cost $112.50 instead of $75, adding $37.50 each month. 

Scaling across many mailboxes or clients

At 10,000 contacts with a three-email sequence, you send 30,000 emails per month and need about 47 mailboxes. 

One Infraforge dedicated IP should support no more than 40 mailboxes, so you'd add a second IP for $99 a month. 

The higher total comes from that IP and additional data, not the software. Growth still covers your volume. 

Line Item Testing Steady Outbound Scaling
Contacts a month 300 8,000 10,000
Emails a month 900 16,000 30,000
Mailboxes 10 on Mailforge: $30 25 on Mailforge: $75 47 on Infraforge: $188
Extra IPs None None 1 extra: $99
Domains, paid yearly 4: $56 a year 9: $126 a year 16: $224 a year
Salesforge Pro: $48 Growth: $96 Growth: $96
Leadsforge Essential: $49 Essential: $49, plus extra credits Essential: $49, plus extra credits
Validation Covered by Pro's 300 credits 1,000 included, the rest bought in the app 1,000 included, the rest bought in the app
Monthly total $127 $220, plus extra credits $432, plus extra credits

Annual billing lowers each total. Pro falls to $40, Growth to $80, and Leadsforge costs $588 a year with 4,000 bonus credits. 

Costs that rarely make it into the budget

The totals above cover a typical month. A few costs sit outside that pattern, and they’re often what pushes a budget over its limit. 

The weeks before your first send

Billing begins when you buy your mailboxes, but campaigns start about two weeks later after warmup. Your first month may include only half a month of sending. If you track cost per email, that month can look twice as expensive as the next one.

Pre-warmed mailboxes remove the wait, but check how each provider prices them:

  • A pre-warmed Primeforge mailbox costs $9 a month, compared with $4.50 for a regular one. You keep paying the difference every month, so saving two weeks once costs an extra $4.50 per mailbox for as long as you use it.
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  • Infraforge charges the usual $4 for pre-warmed mailboxes. However, you must buy at least 4 domains with 2 mailboxes each, and the accounts use generic names you can’t change.

Replacing burned domains and mailboxes

If a poor list or too many spam reports blacklist a domain, replacing it costs more than another registration. A new .com costs $14, but the bigger expense is waiting two weeks for warmup while everything else keeps billing.

Mailboxes cost less to replace. With Mailforge and Infraforge, the slot remains yours, so you can place a new mailbox in it at no extra cost.

I’d budget for a few spare domains each year. That way, blacklisting won’t stop a campaign while replacements warm up.

Minimums and unused capacity

Some of what you buy may go unused, so know where that can happen. 

  • Mailbox capacity may exceed your plan. At the calculator ratio, 10 mailboxes can send about 6,400 emails per month, but Salesforge Pro stops at 5,000. Capacity above your plan limit costs money but sends nothing.
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  • Warmforge already comes with Salesforge. Don’t buy separate Warmforge slots if you use Salesforge.
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  • Leadsforge credits don’t go to waste. They roll over without expiring, so buying the base plan before using all 2,000 credits doesn’t lose money.

Billing cycles also vary. Domains bill yearly, a second Infraforge IP costs $297 every three months, and Warmforge’s lowest rate requires annual billing. 

Map these charges before starting so a quarterly or yearly payment doesn’t surprise you. 

How to work out your own cold email budget

The three stages provide useful benchmarks, but your numbers will differ. I’d build your budget backward from the number of people you want to reach:

  1. Set your monthly contacts. Decide how many new prospects you can research and contact each month.
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  2. Multiply by your sequence length. Reaching 4,000 contacts with two emails each means sending 8,000 emails per month.
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  3. Calculate your mailboxes. Divide monthly emails by about 640, based on the Forge calculators. Sending 8,000 emails requires 13 mailboxes.
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  4. Calculate your domains. At 2 to 3 mailboxes per domain, 13 mailboxes need 5 domains.
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  5. Choose your Salesforge plan. Pro supports up to 5,000 emails and 1,000 active contacts monthly. Exceeding either limit moves you to Growth.
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  6. Price your data. Allow 1 Leadsforge credit per work email. The base plan includes 2,000 monthly credits, with more available in the app.
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  7. Check validation. Pro includes 300 monthly validation credits, while Growth includes 1,000. Budget extra credits for every new contact above those limits.
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  8. Add IPs for dedicated infrastructure. With Infraforge, add another IP for every 40 mailboxes beyond the first 40.

For the 4,000-contact example, you need 13 Mailforge mailboxes for $39, Growth for $96, and Leadsforge for $49. 

That’s $184 a month, plus $70 a year for domains and any additional data and validation credits. 

Track cost per reply, not cost per email

Cost per email shows how cheaply you send, not whether your outreach works. It falls as volume rises, even if replies stay flat. A setup that sends cheaply but lands in spam becomes expensive when you consider the results.

Measure your spending against replies instead:

  • Add your total monthly spend, including credits purchased in the app.
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  • Divide it by that month’s replies. If you spend $220 and receive 40 replies, each one costs $5.50.
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  • Track this figure each month alongside your bounce rate. Open rates are less reliable and tracking them may hurt deliverability, so I’d leave them out.

Two Salesforge features help. Both plans include reply sentiment analysis, allowing you to count interested responses separately. If you use Primeforge, its analytics show reply rates by mailbox and email provider, helping you see which parts of your setup earn their cost.

After a few months of cost-per-reply data, you can budget fin reverse Choose how many replies you want, then work backward to the required contacts, mailboxes, and plan.

How Salesforge fits your cold email budget

You now know which lines belong in your budget. These Salesforge details affect how you plan them. 

Your team size can decide the plan

Pro Growth
Price $48 a month, or $40 billed annually $96 a month, or $80 billed annually
Users 1 Unlimited
Emails a month 5,000 50,000
Active contacts in sequence 1,000 10,000

If two people need to run campaigns, you need Growth even when your volume fits Pro’s limits. Decide this first because it doubles your software cost. 

You can test before you pay

The 14-day free trial includes: 

  • 50 contacts and 100 emails
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  • 50 validation credits and 50 personalization credits
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  • Unlimited mailboxes with warmup

That’s enough to confirm your mailboxes connect and warm up properly, then send a small first campaign.

There’s no contract after the trial. You can change plans anytime, and Salesforge charges plan changes pro-rata. Moving from Pro to Growth mid-month won’t mean paying for two full months.

You pay only for the products you use

Each Forge product has its own subscription. If you already have mailboxes and lead data, you can use Salesforge by itself.

Once your total Forge spending reaches $500 a month, you receive a dedicated account manager, shared Slack channel, and scaling support. 

The scaling setup above costs $432 before extra credits, so a growing team may reach that level sooner than expected.

When Agent Frank changes the math

Agent Frank is the AI agent within Salesforge. It prices outreach by contact rather than by tool. 

Features Agent Frank Building Lists with Leadsforge
Price $499 a month, billed annually $49 a month for 2,000 credits
Cost per contact $0.25 for 2,000+ contacts a month About 2.5 cents per work email
What you pay for Round-the-clock prospecting, plus a search engine of 500M+ contacts Data only; your team does the prospecting
Email infrastructure Paid add-on Bought separately

Agent Frank costs more per contact. What you gain is the prospecting work itself. 

If team time is your hardest cost to stretch, compare the $499 price with the hours your team would otherwise spend creating lists and managing sequences. 

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Conclusion: Start small, then budget from your own numbers

The cheapest way to build a reliable cold email budget is to start small. Run the testing setup for a month or two, track your cost per reply, and use that figure to decide how far to scale. 

A budget based on your results is easier to defend than one based on estimates, including mine.

You can begin without paying. Use Salesforge’s 14-day free trial to connect your mailboxes and send a first campaign. 

Then create a Leadsforge account for 100 free credits toward your first list. Once the numbers work, move to the plan that matches your volume.

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