Buying a cheap SMTP mailbox service as a startup

Your test needs working mailboxes, not a subscription you keep paying while you wait for replies. LocalSMTP sells lifetime tiers sized by how many mailboxes you need, so the decision in front of you is not a monthly bill but a single choice about how many mailboxes your first test requires. Five is often enough for a founder and a couple of sending addresses.

Start by asking what the test actually has to prove. If you want to know whether a short sequence of honest messages gets replies, you need an address or two that look like a real company, configured with standard SMTP and IMAP and reachable in a browser. Warm-up and authentication checks help you set that up properly rather than guessing at settings.

Then decide when you would move up a tier. The trigger should be a real need for more mailboxes, such as a second person sending or a separate address for a different audience, not a vague worry that five looks small. Write that trigger down before you pay so the next purchase is a response to evidence rather than nerves.

Moving up a tier buys one thing: more mailboxes. Studio covers fifteen and Floor covers fifty. The mailbox itself stays the same shape throughout, with standard SMTP and IMAP access and browser webmail for anyone who would rather not configure a mail client. There is no separate feature list open by size.

That matters for a startup because it makes the upgrade question simple. If your test works and you need more sending addresses, or a colleague needs their own mailbox rather than a shared one, a larger tier gives you the room. If your test has not produced replies, a bigger tier will not change that outcome; it only gives you more places to send from.

Consider what extra mailboxes would realistically be used for. Separate addresses for different product lines, a support address, or a founder address distinct from a general one are all reasonable. Speculative mailboxes you fill later are not. Count the addresses you would actually log into this month and choose the tier that covers them with a little room.

The worry you raised is signing an annual contract before the first reply arrives. LocalSMTP is sold in lifetime tiers rather than recurring subscriptions, so the commitment you are weighing is a one-off purchase of a mailbox count, not a year of payments you cannot stop. Check the published tier table yourself before paying so nothing is assumed.

The second hesitation is whether a small tier will look unprofessional. Mailbox count does not decide how a message reads; the domain, the authentication setup and the honesty of what you write do. Warm-up and authentication checks exist to help with the technical side, and a modest number of carefully used mailboxes is a normal way to run a first test.

The third is fear of being locked in. Because you are buying mailboxes you can sign into through standard SMTP and IMAP as well as a browser, you keep access to the mail itself. Read the tier table and any separate service pricing before you commit, so you know exactly what you are buying and what sits outside the tier.

Compare Starter and Studio against your test plan. Starter gives you five mailboxes, which covers a founder address, a general company address and a couple of sending addresses with room to spare. Studio gives you fifteen, which makes sense only if you can name ten more addresses you would genuinely use in the near term rather than eventually.

Run the same test through both. With Starter you would send a short sequence from one or two addresses, watch for replies, and keep the rest of the mailboxes for support and internal use. With Studio you would be running several separate sequences at once, each from its own address, which only helps if you have the contacts and the time to follow up properly.

Pick the tier whose mailbox count matches addresses you would log into this month. For most early startups testing whether outreach works at all, that is Starter. Move to Studio when a real second sender joins or a proven sequence needs its own address, and treat Floor as a later question entirely.