Proxamail

Maildoso provides outbound mailboxes built for cold email, combining SMTP and Google Workspace infrastructure, fast setup, strong deliverability, and automated technical configuration. It helps teams diversify their sending strategy with reputable mailboxes built specifically for cold outreach, so campaigns are not dependent on one sender type, domain, or provider. Users can register domains directly in the dashboard or connect their own, enter mailbox names, and have SPF, DKIM, and DMARC auto-configured so mailboxes are ready to export and use with outreach platforms in minutes. Maildoso supports SMTP mailboxes, Google Workspace mailboxes, and combined setups, giving teams flexibility based on their sending strategy and target audience. It connects with popular sequencers and outreach tools such as Instantly, Smartlead, Saleshandy, and others, making it easier to move newly created mailboxes into active campaigns.

Pipefire is a managed cold-email outreach platform for marketing agencies and other B2B service businesses. Users describe their offer, target market and location, then Pipefire finds business prospects and contact details, prepares email sequences for approval, and operates the sending workflow. The service provisions sending domains and mailboxes, warms them before campaigns begin, sends follow-ups, monitors sending health and organizes replies for review. Customers can approve campaign content and suggested replies through the web console. Outreach runs from Pipefire-managed domains rather than customers’ primary company domains. Plans bundle prospect research, domains, mailboxes, warm-up, sending and reply handling, with capacity varying by plan. Pipefire is intended for businesses selling to other businesses that want outbound email managed instead of configuring and operating separate email tools themselves.