Key points
- New domains have no reputation
- Gradual volume builds trust
- Too much too fast = spam folder
- Warm-up takes 2-4 weeks typically
How to do it
- Start with low volume (10-20/day)
- Increase gradually over weeks
- Engage with sent mail (opens/replies)
- Maintain consistent sending
- Monitor spam rate
Common mistakes
- Blasting on day one
- Inconsistent sending spikes
- No engagement
Deliverability that's handled — freeNo card required — free forever up to 10 mailboxes.