SMTPServerDisconnected: Connection unexpectedly closed: timed out


After migrate to Sentry 8.16.0 I have started receiving this error. I’m not receiving any email from Sentry and I’ve configure the file with the following parameters:

mail.backend: smtp mysmtphost
mail.port: 25
mail.from: myfromail

I’ve seen the connection establishid with my SMTP server, but for some reason Sentry closes the connection… Any tips to try solve this issue?