Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Spamihilator - The free Anti-Spam-Filter Spamihilator removes more than 98% of spam mails before they even get into your inbox.
Live Chat by Landbot - Live chat that combines chatbots with human chat
Mailwasher - Over 8 million people use MailWasher as their spam filter
Video Live Chat for Websites - Provide real-time video chat support with screen sharing
SPAMfighter - SPAMfighter and Microsoft have built the strongest and most effective anti spam filter for Outlook, Windows Live Mail, Outlook Express & Thunderbird