If you want to use any Effective Tours feature which required email sending/notification then you have to set up the email correctly. You can do it by navigating to your company profile , opening the TAB Email Settings, and provide the credentials for your gmail account. Currently we support only Gmail.com. You can easily create a new gmail account for free. And it’s actually a good style to have a separate email, just for the emails from the system.
IMPORTANT ! You have to enable SMTP/IMAP/POP3 in your gmail settings ! And allow insecure applications to connect.