Cold Email Software With SMTP Included: What It Really Costs

What an SMTP slot actually covers

An SMTP slot is the connection between the sending tool and a mailbox. When a plan includes a slot, you do not buy the mailbox from the email tool. You still need an address, either supplied by the plan or connected from a provider you already pay. The slot is the seat, not the inbox itself.

That distinction decides the cost. A $18/month plan with one SMTP slot sends from one identity. If your campaign needs five separate sender identities, you need five slots or five plans, and the price rises in steps you can calculate before checkout.

• Confirm how many sender identities the plan allows, not just how many emails
• Check whether the slot is a connection to your mailbox or a hosted inbox
• Ask whether mailbox warm-up is part of the plan or a separate purchase
• Read the sending limit attached to each slot

Before you commit, readthe full price breakdownto see how each plan maps slots to volume.

The five-mailbox comparison, worked through

Suppose your campaign needs five sender identities and you plan to bring mailboxes you already pay for. The software side can start at $18/month for one slot. Each additional identity is another slot or another plan. The mailbox cost sits outside this site and must be read from your provider's current published terms.

Now suppose you buy a lifetime option instead. LocalSMTP at $149 gives five verified SMTP accounts with settings for both SMTP and IMAP. That is one purchase for five identities. Whether it beats monthly plans depends on how long you keep sending and what you already pay for mailboxes.

• Count the sender identities the campaign needs before comparing prices
• Add your current mailbox cost to the software cost for a true figure
• Compare a single five-account purchase against repeated monthly slots
• Check that any lifetime offer includes the settings you need to connect

If writing sequences is part of the workload, reviewAI-assisted cold email optionsalongside the mailbox decision.

When bringing your own mailbox is cheaper

If you already pay for a mailbox and it is warmed, connected and working, adding a software subscription may be the smaller cost. You are buying the sending engine, the sequence builder and the reporting, not another inbox. The $18/month Starter plan covers 2,000 emails and one SMTP slot in that setup.

The trap is duplication. Paying for a mailbox and then paying a tool that also supplies one means two bills for one identity. Decide which side owns the inbox before you buy, and check the tool you are leaving for its current published terms on exports and connections.

• List every mailbox you already pay for and its monthly cost
• Confirm the software can connect to that provider without an extra fee
• Avoid plans that supply an inbox you will not use
• Check what happens to connected mailboxes if you cancel

For the wider buying decision, start withbuying cold email softwareand then return to the slot count.

Time cost beyond the invoice

Included SMTP saves setup time. You receive settings and connect them. Bringing your own mailbox means finding the host, port and credentials, testing the connection and repeating that for every identity. On five identities, that is five setup rounds before the first send.

Warm-up is the other time item. Mail Pro at $149 includes warm-up on every account under a lifetime unlimited licence. If you are spending hours warming mailboxes by hand, that labour has a cost even when the mailbox itself is already paid for.

• Count the setup steps per identity, then multiply by identities
• Check whether warm-up is automated or manual
• Confirm who handles connection failures and bounces
• Decide whether your time or the subscription is the scarcer resource

Building a total you can defend

Write the software cost and the mailbox cost on separate lines. Add them. That total is the only number worth comparing. A $38/month Growth plan with 10,000 emails and a reply inbox may replace two tools, which changes the arithmetic in its favour.

Use the table below to place each option at its published price. Then decide whether you are buying slots, inboxes or both. The answer should be visible on one line of paper before you enter card details.

• Separate software and mailbox lines in your budget
• Note which plan tiers add slots rather than volume
• Check the annual figure, not just the monthly one
• Revisit the decision when sending volume changes

Mailbox and SMTP options at published prices

Prices are one-time for lifetime deals unless stated as monthly, and code SALE20 takes 15% off lifetime deals.

Frequently asked questions