Pipefire

Pipefire is cold email software designed for agencies and service businesses that sell to other businesses. It handles the entire cold email process including buying and warming sending domains, finding and verifying prospects, writing and sending emails, and sorting replies.

The system uses multiple agents to manage tasks such as prospect finding, domain setup, mailbox warming, email sending, bounce monitoring, and reply drafting. Your own domain is never used for sending cold emails; instead, Pipefire uses its own warmed domains to protect your reputation.

You provide some initial information about your ideal clients and location, approve domain and sender names, and then Pipefire runs the campaign. You only need to approve replies to book meetings. The service includes A/B testing, bounce and spam protection, and 24/7 monitoring.

Pipefire is suitable if you want to outsource cold email outreach without managing the technical setup or daily sending. It is not for consumer sales, immediate sending needs, or uploading purchased prospect lists.