There is an app called Match My Email which will automatically sync and log emails from any Apple device or Apple mailbox to Salesforce.
A major gap in Salesforce.com’s CRM platform is its lack of email integration with the MAC world. Users of Mail, Apple Mail or Mail.com are just plain out of luck. Saleforce.com’s email plug-ins don’t’ work on of Apple MacBook and Air, iPad and iPhone so users are stuck doing manual copy/paste to get emails logged in Salesforce records. MAIL, which is preconfigured to work with popular email providers, such as Yahoo! Mail, AOL Mail, Gmail, Office365/Outlook and iCloud (formerly MobileMe) as well as Exchange, can’t connect to Salesforce. This is an issue for Salesforce Mac integration.
Luckily, there is a Salesforce for Outlook Mac solution on the AppExchange that can solve the email syncing and logging needs of Mac users.