When your email strategy depends on a single platform, you're one outage away from silence. By pairing **Klaviyo** — the leading email marketing and segmentation platform — with **Mailgun** — a developer-grade transactional email API — inside Neotask, you gain a battle-tested dual email infrastructure that handles every message type with precision. Neotask bridges these two best-in-class tools so your marketing campaigns and transactional emails never compete for resources, never land in the wrong queue, and never leave your audience waiting.