Config of sending emails SEN-9169397

Question

I configure the sending emails with an account on an smtp server working on standard port 25 without ssl nor tls, the username and password are correct but the system on linux ubintu 16.4TLS is unable to make the test of sending emails from JIRA server.

An error has occurred with sending the test email:
com.atlassian.mail.MailException: com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.gnet.tn, 25; timeout 10000;

Nic Brough -Adaptavist- · Answer

Ok, there's either a firewall (unlikely, as I'd expect a flat refusal) or there is something running on the server on port 25 that is not allowing login.  Probably an SMTP server, as 25 is the default port for that, but if it is that, it has been configured not to listen on that port.

Contact the email server administrator.

fhachicha · Answer

It response a timeout

telnet smtp.gnet.tn 25
Trying 193.95.57.10...
telnet: Unable to connect to remote host: Connection timed out

Nic Brough -Adaptavist- · Answer

Ok, that's good, it rules out the first problem.

What does "telnet smtp.gnet.tn 25" return?  It should respond quickly with something recognisable as a prompt to log into a mail server.