![Connection could not be established with host smtp.gmail.com [ #0] · Issue #3140 · humhub/humhub · GitHub Connection could not be established with host smtp.gmail.com [ #0] · Issue #3140 · humhub/humhub · GitHub](https://user-images.githubusercontent.com/5346797/39098366-3a8ae6c8-4683-11e8-89f4-ec98f69b5c10.png)
Connection could not be established with host smtp.gmail.com [ #0] · Issue #3140 · humhub/humhub · GitHub
Connection could not be established with host smtp.gmail.com [ #0] · Issue #3140 · humhub/humhub · GitHub
![Getting this error message: The message could not be sent because the connection to Outgoing server (SMTP) smtp.gmail.com was lost in the middle of | Thunderbird Support Forum | Mozilla Support Getting this error message: The message could not be sent because the connection to Outgoing server (SMTP) smtp.gmail.com was lost in the middle of | Thunderbird Support Forum | Mozilla Support](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/images/2020-03-02-03-19-49-338f62.png)
Getting this error message: The message could not be sent because the connection to Outgoing server (SMTP) smtp.gmail.com was lost in the middle of | Thunderbird Support Forum | Mozilla Support
![Unable to connect to the SMTP server: context deadline exceeded - Enterprise Edition - Mattermost Discussion Forums Unable to connect to the SMTP server: context deadline exceeded - Enterprise Edition - Mattermost Discussion Forums](https://global.discourse-cdn.com/business7/uploads/mattermost/original/2X/7/7d22079803bcd133eecbcc895f04b0093975fd77.png)
Unable to connect to the SMTP server: context deadline exceeded - Enterprise Edition - Mattermost Discussion Forums
![java - MailConnectException: Couldn't connect to host, port: smtp.gmail.com, 110; timeout -1; - Stack Overflow java - MailConnectException: Couldn't connect to host, port: smtp.gmail.com, 110; timeout -1; - Stack Overflow](https://i.stack.imgur.com/abhBB.jpg)
java - MailConnectException: Couldn't connect to host, port: smtp.gmail.com, 110; timeout -1; - Stack Overflow
![php - Swiftmailer: Connection could not be established with host smtp.gmail.com [Connection timed out #110] - Stack Overflow php - Swiftmailer: Connection could not be established with host smtp.gmail.com [Connection timed out #110] - Stack Overflow](https://i.stack.imgur.com/s9pvV.png)