Gmail SMTP settings propably using port 465 when 587 is selected · Issue #3834 · craftcms/cms · GitHub
![Could not send the test email. Error: stream_socket_client(): unable to connect to tcp://127.0.0.1:587 (Connection refused) - Installation Issues - Passbolt community forum Could not send the test email. Error: stream_socket_client(): unable to connect to tcp://127.0.0.1:587 (Connection refused) - Installation Issues - Passbolt community forum](https://global.discourse-cdn.com/standard11/uploads/passbolt/original/2X/3/323d68d83a814ee0c83061c27f862abcb9750eb4.png)
Could not send the test email. Error: stream_socket_client(): unable to connect to tcp://127.0.0.1:587 (Connection refused) - Installation Issues - Passbolt community forum
![KSC won't use submission port 587 to send e-mail - Kaspersky Endpoint Security Cloud - Kaspersky Support Forum KSC won't use submission port 587 to send e-mail - Kaspersky Endpoint Security Cloud - Kaspersky Support Forum](https://forum.kaspersky.com/uploads/archive/images/fbe6410b-c555-4cd2-b2e0-18d1a3680a75.png)