Server message: Can't connect to host "tcp://localhost:143"

Hello,

I am trying to access webmail to verify that everything is working properly, but for some reason I cant connect. I get an error : Server message: Can’t connect to host “tcp://localhost:143”.
I have verified the firewall, the port is open:
143/tcp ALLOW Anywhere

I dont see any service listening on the port tho:
netstat -tulpn | grep LISTEN
tcp 0 0 127.0.0.1:8891 0.0.0.0:* LISTEN 295/opendkim
tcp 0 0 127.0.0.1:11211 0.0.0.0:* LISTEN 308/lsmcd
tcp 0 0 0.0.0.0:8090 0.0.0.0:* LISTEN 320/lscpd (lscpd -
tcp 0 0 0.0.0.0:7080 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 0.0.0.0:587 0.0.0.0:* LISTEN 750/master
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 0.0.0.0:465 0.0.0.0:* LISTEN 750/master
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 750/master
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 327/sshd: /usr/sbin
tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 661/pure-ftpd (SERV
tcp 0 0 0.0.0.0:53 0.0.0.0:* LISTEN 566/pdns_server
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 362/openlitespeed (
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 420/mysqld
tcp6 0 0 :::587 :::* LISTEN 750/master
tcp6 0 0 :::465 :::* LISTEN 750/master
tcp6 0 0 :::25 :::* LISTEN 750/master
tcp6 0 0 :::22 :::* LISTEN 327/sshd: /usr/sbin
tcp6 0 0 :::21 :::* LISTEN 661/pure-ftpd (SERV
tcp6 0 0 :::53 :::* LISTEN 566/pdns_server
/home/emils# telnet localhost 143
Trying 127.0.0.1…
telnet: Unable to connect to remote host: Connection refused

VPS service: webdocks
I tried to check with them as well, they said they are not blocking anything.

Any ideas?

Regards,
Emīls

hi rockets115

i see from your netstat port 143 its not listening
can you run this command

systemctl status dovecot -l

that should be run and your port 143 will listen again

Hi,

I have the same issue when i run systemctl status dovecot -l i recive this message:

Jul 15 20:24:19 docker systemd[1]: Dependency failed for Dovecot IMAP/POP3 email server.
Jul 15 20:24:19 docker systemd[1]: dovecot.service: Job dovecot.service/start failed with result 'dependency'.
Jul 15 20:29:23 docker systemd[1]: Dependency failed for Dovecot IMAP/POP3 email server.
Jul 15 20:29:23 docker systemd[1]: dovecot.service: Job dovecot.service/start failed with result 'dependency'.
Jul 16 07:20:09 docker systemd[1]: Dependency failed for Dovecot IMAP/POP3 email server.
Jul 16 07:20:09 docker systemd[1]: dovecot.service: Job dovecot.service/start failed with result 'dependency'.
Jul 16 07:24:43 docker systemd[1]: Dependency failed for Dovecot IMAP/POP3 email server.
Jul 16 07:24:43 docker systemd[1]: dovecot.service: Job dovecot.service/start failed with result 'dependency'.
Jul 16 07:26:20 docker systemd[1]: Dependency failed for Dovecot IMAP/POP3 email server.
Jul 16 07:26:20 docker systemd[1]: dovecot.service: Job dovecot.service/start failed with result 'dependency'.

The server is Ubuntu Server 20

Solved running sudo chmod 1777 /tmp

i have the same issue, and i am using centos. help please

Hello dear,
Could you please your cert.key and key.pem file? and check dovecot status.You can try reinstall your ssl cert for your domain and mailserver from control panel.

Hello, I am asking you if there is any method or solution for this port error on Localhost.
I am particularly working on a VPS with Ubuntu 22.04 and installing CyberPanel. It did not open port 143 and I suppose that is why I cannot access the emails with SnappyMail.

Hello,

Same problem, I get same error in CyberPanel on Litespeed and Ubuntu 22.04, can’t access Webmail.

systemctl status dovecot -l
and
sudo chmod 1777 /tmp
and
SSL certs reissue don’t help…

Maybe someone knows any decisions?

Thank you.

A year later… anyone?