Outlook CalDav Synchronizer - Free Outlook Plugin, which synchronizes events, tasks and contacts between Outlook and Google...
Outlook4Gmail - Outlook4Gmail provides easy synchronization of your Outlook and Google accounts
gSyncit - gSyncit Outlook Cloud Synchronizer. Outlook Calendar, Contact, Task, Note Synchronizer supporting Google, Toodledo, Evernote, Informant, iCloud, AOL, Yahoo, Synology, Fruux, Memotoo and CalDav/CardDav services.
Boomerang for Outlook - Boomerang for Outlook offers email productivity tools to track, schedule and send mails at the right time.
GO Contact Sync Mod - GO Contact Sync Mod is an open source tool to synchronize your Microsoft Outlook contacts with...
BlueMail - BlueMail is an email management app for Android, iOS, and Windows.