In June 2017, Microsoft released an update for Outlook 2016 that affected it’s integration with other software applications that use MAPI. Unfortunately, the update affected any version of Act! that integrates with Outlook 2016 (local install) or Outlook 365 subscription.
What symptoms will might see:
- Sending an email from Act! you receive a ‘Not responding’ error and Act! closes
- Sent emails from Outlook do not attach to your Act! contact history
- Act! Add-In does not work from within Outlook
- Add-In Tab does not display Act! icons
These issues have been resolved in versions 20 and above. If you need to upgrade see Pricing