Warmforge
Warmforge is a premium email warm-up tool designed to enhance email deliverability by mimicking human-like interactions within your mailbox. By gradually increasing email sending volume and engaging in AI-generated exchanges, it signals to email service providers that your inbox is active and trustworthy, thereby improving the likelihood of landing in recipients' primary inboxes rather than spam folders. Warmforge offers features such as heat score monitoring, multi-mailbox support, and a deliverability dashboard providing real-time insights into email performance. The platform supports both Gmail and Outlook, ensuring broad compatibility. Pricing starts at $12 per mailbox per month, with discounts available for bulk users, going as low as $3 per mailbox per month. Additionally, Warmforge offers an ambassador program, allowing users to earn recurring commissions by referring new customers.
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Terlido
Terlido is a cloud-based platform for teams running cold-email campaigns from connected Gmail, Microsoft 365, or SMTP/IMAP mailboxes. Warmup and campaigns share one daily per-mailbox send budget, with recipient-domain throttling, suppression controls, and automatic pauses at bounce or spam thresholds. Before sending, it checks SPF, DKIM, DMARC, and MX records; unsubscribe headers remain on. Sequences combine email, WhatsApp, LinkedIn, and call steps. LinkedIn steps become prepared tasks for a person, not automated account actions. Terlido Newsletter is free for up to 10,000 subscribers. The platform also offers a unified inbox, contact management, campaign analytics, two-way HubSpot sync, and a REST API and MCP server on eligible plans; agent use follows sending limits and workspace controls. Teams can manage outreach campaigns and replies from one workspace.
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MailPilot
MailPilot is a web-based email warmup and deliverability platform for B2B sales teams, SDRs, founders, and cold-email agencies. It automates mailbox warmup and provides inbox-placement checks across major email providers, along with sender-reputation reporting and diagnostics for SPF, DKIM, DMARC, DNS, and blocklists. MailPilot also offers pre-send checks for spam signals and links, and can send alerts through connected communication channels. Users connect email accounts from supported providers or custom SMTP services to monitor mailbox health and prepare outreach campaigns. The service is intended to help teams identify deliverability problems and assess whether messages are reaching inboxes or spam folders; outcomes depend on mailbox configuration, provider policies, and sending practices.
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Warmerly
Warmerly is a hosted outreach platform for warming email and LinkedIn accounts and managing campaigns in one workspace. It supports gradual account activity, campaign sequences, and a unified inbox for handling replies and potential leads. The vendor describes paced WhatsApp messaging and automated sequence stops when a recipient replies. Its stated audience includes founders, sales teams, recruiters, and agencies conducting outbound outreach. The vendor also describes mailbox and LinkedIn account plans, a free plan, daily SPF, DKIM, and DMARC checks, an email authentication and blacklist checker, and an MCP server for connecting AI assistants to outreach workflows. Pricing and feature availability should be confirmed with the vendor before purchase.
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