MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Zoho Desk - Industry's first context-aware Helpdesk Software
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
Salesforce Service Cloud - Service Cloud integrates customer service with social networks and provides a self-service customer portal and knowledge base system.