Email sending limits and account warm-up

Email sending limits ramp as your account ages. This is account warm-up: small volumes from new accounts, increasing gradually, never past the provider’s safe cap.

CLIENT-ONLY · Concept Explainer

Why it matters

Google and Microsoft throttle accounts that send too much too fast. A new account suddenly sending 200 cold emails looks like a spammer, and the provider responds by lowering inbox placement, routing to spam, or suspending the account.

Wiggli’s ramp mirrors what deliverability experts recommend. The payoff: emails reach inboxes, the account stays healthy, and campaigns stay recoverable.

How it works

Limits are per connected sender account, not per campaign or workspace.

Ramp-up schedule

Day 1-2 after connecting: 50/day
Day 3-7: 75/day
Day 8-14: 100/day
Day 15-28: 150/day
Day 29+: up to the provider’s safe cap

Provider safety caps

Gmail / Google: 150/day
Outlook / Microsoft: 250/day
IMAP / other mailboxes: 150/day

If a provider blocks or throttles a send, Wiggli doesn’t drop the recipient. The campaign preserves state and retries when sending can resume.

For larger campaigns, use multiple healthy senders. Three accounts at 80/day is healthier than one pushing 250.

Common misconceptions

Outlook isn’t always faster. Only established Outlook accounts that finished warm-up. New ones ramp like new Gmail accounts.

Limits aren’t per campaign. They’re per connected sender, summed across every campaign from that account.

You can’t override the cap. It’s enforced by Wiggli and the provider. The fastest way to ramp is low bounce rates and a maturing account.

Connecting two emails does double your limit. Three at 80/day beats one at 240.

Day 29 isn’t permanent max. If bounces spike or spam complaints come in, providers throttle again. Limits track account health, not just the calendar.

Still stuck?

Your customer success manager reads faster than any search bar.

Get help