![Troubleshooting guide - Gmail for Helpdesk returns failure "Invalid credentials" even though the credentials are correct | RedmineUP Help | Helpdesk plugin documentation Troubleshooting guide - Gmail for Helpdesk returns failure "Invalid credentials" even though the credentials are correct | RedmineUP Help | Helpdesk plugin documentation](https://www.redmineup.com/cms/assets/thumbnail/115741/500/less_secure_apps_google_account.png?token=08e905aed940229e3d191149b0e320d39c397077527aa219f6229f5867b775b4)
Troubleshooting guide - Gmail for Helpdesk returns failure "Invalid credentials" even though the credentials are correct | RedmineUP Help | Helpdesk plugin documentation
![Can't reach the server' when syncing mail with managed Gmail app on Android Enterprise enrolled device – Thomas Cheng Can't reach the server' when syncing mail with managed Gmail app on Android Enterprise enrolled device – Thomas Cheng](https://techiecheng.files.wordpress.com/2020/09/problemmailsync.png)
Can't reach the server' when syncing mail with managed Gmail app on Android Enterprise enrolled device – Thomas Cheng
![Security update required' upon launching managed Gmail app after updating Android OS to version 10 on Google Pixel device – Thomas Cheng Security update required' upon launching managed Gmail app after updating Android OS to version 10 on Google Pixel device – Thomas Cheng](https://techiecheng.files.wordpress.com/2019/09/2.png?w=339&h=603)