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Smartlead

Sequencers

Cold email sequencer (tool that sends email steps over days) with unlimited mailboxes, warmup (small safe mail so new inboxes look normal before cold volume), rotation, unibox, and agency white-label (client-branded portal).

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The verdict

Smartlead is the agency cost play. Model plan plus about $29 per white-label client, not the $39 Base sticker. Five clients on Pro sketch to about $239 a month before SmartDelivery, Servers, or inbox infra. Ten clients on Unlimited Smart sketch to about $464 before those add-ons. Unlimited connected accounts are not free mailboxes. You still buy Google, Microsoft, or SMTP elsewhere.

Smartlead's State of Cold Email platform report frames results in contacts per reply, not opens. Bounce near 2% is the danger line on that same report. On matching infra and lists, Coldops saw no systematic placement gap versus Instantly. The real win is ops time for multi-client fleets, not a deliverability crown. Instantly is a peer on the same send layer.

What operators say

“Smartlead is built for the shop running outbound on behalf of other people… white-label dashboard for roughly $29 per client per month.”

Best for

Agencies and multi-client fleets. High-volume senders. API automators who need isolated workspaces and white-label.

Not for

Solo founders who want the simplest UI plus a bundled lead database. Instantly often wins that job.

Pricing truth

Base is $39 per month with no API. Pro is $94. Unlimited Smart is $174. Unlimited Prime is $379. About 17% off annual. White-label is about $29 per client per month on Pro and up. Sketch: five clients on Pro is about $239 a month ($94 + 5×$29). Ten on Unlimited Smart is about $464 ($174 + 10×$29) before SmartDelivery, Servers, or mailboxes. Unlimited mailboxes do not mean free boxes. Checked 22 Sep 2026.

When we use it

  • Run multi-client agency fleets with isolated workspaces and white-label portals.
  • Rotate a high inbox count where per-mailbox sequencer fees would explode elsewhere.
  • Automate outbound with API and webhooks once you leave Base.
  • Pick Smartlead for agency isolation, then buy inbox infra separately.

How to wire it

  1. Connect Google Workspace or Microsoft via OAuth, then warm before cold volume.
  2. Start Pro or above for API or white-label. Base has no API.
  3. Budget plan plus about $29 times clients before SmartDelivery add-ons.
  4. Verify lists externally and buy mailboxes from a separate inbox vendor.
  5. Watch bounce toward the 2% danger line. Fix list and domains before you blame the sequencer.

Margin notes

  • Five clients on Pro sketch to about $239 a month all-in before infra.
  • Ten clients on Unlimited Smart sketch to about $464 before add-ons.
  • Unlimited mailboxes are not free infra. Buy boxes separately.
  • Base at $39 looks cheap until you need API. Then you are on Pro at $94.
  • Contacts per reply beats opens as a plan metric. Opens get noisy.

FAQ

Is Base $39 enough for an agency?▾

Usually no. Base has no API. Agencies that need workspaces, white-label, or automation start on Pro at $94 or higher.

What does white-label cost at 5 or 10 clients?▾

About $29 per client per month on Pro and up. Five clients on Pro is about $239 a month. Ten on Unlimited Smart is about $464 before SmartDelivery, Servers, or mailboxes.

Do unlimited mailboxes mean free infra?▾

No. Unlimited means you can connect many accounts. You still pay Google, Microsoft, or SMTP. Buy boxes from an inbox provider.

What does Smartlead's 850M report say about replies?▾

Smartlead's State of Cold Email platform report frames success as contacts per reply, not opens. Typical and top-decile gaps are large. First email does most of the work.

Is bounce under 2% a hard line?▾

Treat about 2% as the danger line on that same Smartlead platform report. Typical bounce sits lower. Worst quartile runs higher. Fix list hygiene before you scale volume.

Does Smartlead win deliverability versus Instantly?▾

Not as a logo fight. Coldops found no systematic placement gap when warmed domains, verified lists, and sane volume match. Pick Smartlead for agency ops, not a placement crown.

Next step

If you run clients, price Pro plus white-label honestly. Buy mailboxes separately. Then open Smartlead. Try Smartlead