Brevo (formerly Sendinblue) warmup is the process of gradually scaling your email sends to build trust with ISPs (Internet Service Providers).
How it works:
Start by sending small batches to your most active contacts. Over time, increase volume while tracking engagement. Brevo doesn’t warm up accounts automatically, you’ll need to manage it manually or with a tool.
Why it matters:
Going too fast can get your domain or IP flagged. Warming up builds your reputation with inbox providers.
Tips:
- Segment your list by engagement
- Send consistently (daily if possible)
Monitor open/bounce/spam rates during the warmup