Why limits exist
Spammers send huge volumes from brand-new domains. Inbox providers therefore treat sudden volume from an unknown sender with suspicion. A gradual ramp shows you're a real sender with real subscribers.
How warm-up works
- Start at a modest daily volume, around 1,000 emails.
- Send to your most engaged contacts first: people who opened recently.
- Roughly double the volume each day while bounce and complaint rates stay low.
- If rates rise, hold your volume steady and clean your list before growing again.
How Preping handles it
Your dashboard shows today's limit, why it's that number and exactly when it grows. It starts at 1,000 a day and doubles each healthy day. Transactional email always has room reserved, so a big campaign never blocks a password reset, and a campaign that hits the limit simply continues the next day.