By shuming496
I tried to open port 465, But…
ufw allow 465/tcp
ufw allow out 465/tcp
sudo nmap -sS -p 20-2550 localhost
Nmap scan report for localhost (127.0.0.1)
Host is up (0.000019s latency).
Not shown: 2528 closed ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
443/tcp open https
telnet -4 smtp.gmail.com 465
telnet: Unable to connect to remote host: Connection timed out
Unable to open port 465
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Hello,
Recently I had the same issue, even though port 465 was allowed for outgoing TCP connections with the ufw allow 465/tcp command I was still not able to connect.
Then I ran an update along with an upgrade, rebooted the system and the connections started working as normal.
Hope that this helps! Regards, Bobby
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