Zoho SalesInbox Alternatives

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Preferred Patron is the top Customer Loyalty Software Program for businesses in any industry of any size.

Visit website paid $149.0 / Monthly (Small Biz Edition - White labeled (5,000 Active Member Limit))

multi-channel inbox service for collaborative teams

Mailbird is the best email client for Windows 7, 8 and 10

eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.

freemium

Shift is the ultimate email client for managing Mail, Calendar, Drive, Slack, Asana, Jira, Evernote, and all your other favourite apps

freemium

Spike solves businesses' communication chaos by bringing together email, team chat, collaborative docs, and meetings, into one feed.

freemium

Airmail is a lightweight and lightning fast mail client for Mac.

Mailspring is a mail client for Mac, Windows and Linux.

Open Source

Amazon WorkMail is a secure, managed business email and calendar service.

Zimbra Desktop is an offline client that lets you manage various email accounts in one desktop tool.  Zimbra mail, Yahoo! mail, Gmail, Outlook and any other work or personal email account using POP or IMAP is easy to set up in Zimbra Desktop.

With BlackBerry Work, mobile users can securely access enterprise email, calendar, contacts, and apps for work.

K-9 is an opensource email client making it easy to chew through large volumes of email.