You are sure dovecot is running on the ports (netstat -tanp). You are sure this
firewall is ok? Maybe flush it, just to be sure.
> Greetings,
>
> I was just tasked with rebuilding from scratch the mail server of an
> NGO,
> on a brand new Ubuntu 24.04 LTS VPS.
>
> I have copied the whole dovecot configuration to the new server, and now
> am
> stuck because:
>
> - dovecot IS running, dovecot service status shows no errors, but:
>
> - if I try to connect with mutt from my desktop I get "connection
> refused"
>
> - the ufw firewall does allow imap/imaps connections, and there are no
> errors in its log
>
> - even "telnet localhost 143" fails:
> Trying ::1...
> Connection failed: Connection refused
> Trying 127.0.0.1...
> telnet: Unable to connect to remote host: Connection refused
>
> - I see no related errors in /var/log/mail.log or /var/log/syslog.
>
>
> output of dovecot -n is pasted below, I only changed the actual domain
> name
> to "example.com"
>
> TIA for any pointer, I really need to get this server back online as
> soon
> as possible...
>
> Marco
>
> # 2.3.21 (47349e2482): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.5.21 (f6cd4b8e)
> doveconf: Warning: NOTE: You can get a new clean config file with:
> doveconf
> -Pn > dovecot-new.conf
> doveconf: Warning: Obsolete setting in /etc/dovecot/conf.d/10-
> ssl.conf:9:
> ssl_dh_parameters_length is no longer needed
> # OS: Linux 6.8.0-51-generic x86_64 Ubuntu 24.04.1 LTS ext4
> # Hostname: example.com
> auth_debug = yes
> auth_verbose = yes
> auth_verbose_passwords = plain
> mail_location = maildir:/var/mail/mymail_storage/base/
> mbox_write_locks = fcntl
> passdb {
> args = /etc/imap.v_users
> driver = passwd-file
> }
> passdb {
> driver = pam
> }
> service auth {
> unix_listener /var/spool/postfix/private/auth {
> group = postfix
> mode = 0660
> user = postfix
> }
> }
> service imap-login {
> inet_listener imap {
> port = 0
> }
> }
> ssl_cert = </etc/letsencrypt/live/example.com/fullchain.pem
> ssl_cipher_list = ALL
> ssl_key = # hidden, use -P to show it
> ssl_prefer_server_ciphers = yes
> userdb {
> args = /etc/imap.v_users
> driver = passwd-file
> }
> userdb {
> driver = passwd
> }
> verbose_ssl = yes
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