Skype for Slack - Move your slack discussions to a group skype call
SPAMfighter - SPAMfighter and Microsoft have built the strongest and most effective anti spam filter for Outlook, Windows Live Mail, Outlook Express & Thunderbird
Aircall Now - Make voice calls inside Intercom Messenger 📞💬
Spamihilator - The free Anti-Spam-Filter Spamihilator removes more than 98% of spam mails before they even get into your inbox.
HandsFree 2 - Call and SMS in Mac using your Android phone via Bluetooth
Mailwasher - Over 8 million people use MailWasher as their spam filter