Knowledge Base Bulko

Warming is the gradual increase of sending volumes from a new SMTP account. Warmed-up accounts earn more trust from mail providers and increase the chance of your emails landing in the inbox.

For small campaigns (up to 10,000 emails), 2–3 accounts are enough. For medium volumes (10K–50K), we recommend 5–7 accounts with rotation.

Спинтакс — разметка, из которой Bulko случайно выбирает один вариант. Это создаёт уникальный контент в каждом письме и снижает риск попадания в спам.

All replies to your campaigns are automatically collected in the "Replies" section. AI classifies them into positives, questions, and rejections — you only work with the ones that matter.

Yes: webhooks, a public REST API, Stripe, crypto payments. See the full list in the Integrations section.