MailClark - The Slack bot for external communications
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
PigeonBot - Send emails via Slack with the /email command
HelpDocs - Educate your users with a super simple knowledge base that’s built for teams just like yours.
Clubble.io - Answer emails via Slack.
Document360 - Self-service knowledge base software focused on SaaS Products & Enterprise Software Projects.