Blog / Cold emails per day

How many cold emails can you send per day?

By persist · July 2, 2026 · 6 min read

The number that matters isn't what Gmail allows — it's what your domain's reputation can absorb. Send 500 cold emails on day one from a fresh domain and you'll spend the next three months in the spam folder. Here are the real numbers senders use in 2026.

Provider caps vs practical caps

Google Workspace technically allows 2,000 sends a day. That ceiling is for newsletters to people who opted in — not cold outreach. For cold email, the practical numbers are far lower:

Week 1–210–20/day — a brand-new mailbox should look like a human starting a job, not a machine turning on.

Week 3–430–50/day — ramp only if bounces stay under 2% and you're getting some replies.

Warmed50–100/day per mailbox — the steady state most experienced senders hold, forever.

Never300+/day from one mailbox — even warmed, this pattern screams automation to filters.

Domain age matters more than you think

A domain registered last week has no history, and filters treat no history as guilt. If your domain is under 30 days old, halve every number above. Better: buy the domain the day you start building, put a one-page site on it, and let it age while you write code.

Send from a separate domain (e.g. getpersist.chat instead of persist.chat) so cold outreach can never damage the domain your product, billing, and transactional email live on.

Signs you're being throttled

Reply rate falls off a cliff while volume stays constant — you're landing in spam, not being ignored.
Bounce rate creeps above 3% — stop sending and clean your list today.
Even your test sends to your own accounts land in spam or "Promotions."

When it happens: cut volume by half or more, send only to your most-verified segment, and rebuild gradually over 2–3 weeks. There is no fast fix for a damaged domain — only prevention. The full pre-send hygiene list is in our deliverability checklist.

The multi-mailbox math

Scaling isn't one mailbox sending more — it's more mailboxes sending little. Three warmed mailboxes at 60/day gives you 180 sends/day, ~3,600/month, all inside safe limits. Each mailbox needs its own warm-up ramp, and ideally each lives on its own sending domain.

Volume is the wrong lever anyway

A 100-contact list with tight targeting and a 4-touch sequence beats a 1,000-contact spray on replies-per-hour-invested, and it's an order of magnitude safer for your domain. If you need more pipeline, improve who's on the list and how you follow up before you raise the daily send count.

Pacing on autopilot

persist ramps new mailboxes automatically, checks real domain age, paces sends through the day, and throttles when reputation signals dip — always-on, no config.

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