Configuring GMail email feature in HS4 with less secure apps.
The HS4 software is capable of sending emails when triggers are activated or even scanning emails for keywords to then activate your events. We recommend using a Gmail account as HS4 has the advanced settings ready for Gmail, but you can use a different email provider if you prefer and know the SMTP settings for it. If you are unsure of those settings, use Gmail.
The security settings outlined below must be adjusted as described for Gmail to work. Due to these security concessions, we recommend creating a new, dummy Gmail account exclusively for use with HS3.
It is generally a good idea to enable multi-factor authentication on any online account to prevent unwanted logins. However, having such a security feature enabled on your Gmail account will prevent your HS3 system from being able to access your account, unfortunately.