Mailrun

Mailrun.ai is an AI-powered email outreach platform designed for cold email at scale, catering to agencies, sales teams, and lead generation professionals. Built with high-volume B2B outreach in mind, the platform supports up to 400 inboxes per plan and integrates deliverability optimization into every layer - from infrastructure to content delivery. By automating warm-ups, email sequencing, and inbox distribution, Mailrun.ai helps teams accelerate campaign deployment while minimizing manual work and deliverability risks.

Underpinned by Microsoft Azure infrastructure, Mailrun.ai provides a reliable and scalable environment for managing distributed outreach operations. With advanced analytics, custom domain support, and multi-user collaboration features, it offers a comprehensive toolset for managing, monitoring, and scaling outbound campaigns across multiple teams and accounts.

Key Features

• Multi-Inbox Management: Operate up to 400 inboxes per plan, enabling a distributed sending strategy to avoid spam filters and maintain volume.
• Automated Email Warm-Up: Gradually ramps up sending activity to build trust with email service providers and protect sender reputation.
• Sequence Scheduling & Automation: Design and automate multi-step follow-up sequences to engage leads over time without manual intervention.
• Custom Domain Support: Connect and manage up to 16 sending domains per plan to diversify sender identity and reduce domain fatigue.
• Azure-Based Infrastructure: Leverages Microsoft Azure’s secure and reliable cloud ecosystem to support strong inbox placement and uptime.
• Advanced Campaign Analytics: Monitor performance across inboxes and domains with detailed metrics such as open, click, reply, and bounce rates.
• Team Collaboration Tools: Share inboxes, manage campaigns jointly, and maintain visibility across outreach efforts within a single platform.
• Cold Outreach Optimization: Purpose-built for B2B email at scale, with built-in systems to manage risk, improve targeting, and streamline execution.

Pricing

• Starter plan: $129/month
• Growth plan: $199/month
• Scale plan: $349/month

Pros

• High Deliverability: Utilizes Azure infrastructure for reliable inbox placement.
• Scalable Outreach: Supports multiple inboxes and domains for large-scale campaigns.
• Automation: Automates email warm-up and sequencing to save time.
• Comprehensive Analytics: Provides detailed metrics to refine outreach strategies.

Cons

• Pricing: May be considered high for small businesses or startups.
• Learning Curve: Some users may require time to fully utilize advanced features.
• Domain Costs: Additional charges for domains may add to overall expenses.