Mailbutler

It is an email extension that adds tracking, personalized sending, shared inbox collaboration, and signature marketing tools to help users monitor engagement, send bulk personalized emails, coordinate on shared inboxes, and use signatures for outreach. It sells to professionals and teams across B2B and B2C contexts who manage high volumes of email. It is delivered as an inbox extension for Apple Mail, Gmail and Outlook available via app stores as a SaaS with free and enterprise tiers.

Key features

• open and click tracking
• per-recipient tracking
• real-time notifications
• follow-up suggestions
• message templates
• mail merge
• smart timing
• AI email assistant
• email assignments
• live status indicators
• shared notes and tasks
• automations
• professional email signatures
• call to action banners
• dynamic signature content
• UTM link personalization
• smart follow-ups
• workflows