Why can't I receive emails with postfix?

Why can't I receive emails with postfix? -- Linux Enterprise Application-Linux server application information. For details, refer to the following section. The maillog is as follows:
Dec 4 03:58:06 mail postfix/smtp [4361]: 8CF5C1D0419: to = , Relay = newprecise. local [60.191.124.236]: 25, delay = 20, delays = 0.04/0.01/20/0, dsn = 4.0.0, status = deferred (host newprecise. local [60.191.124.236] refused to talk to me: 421 Cannot connect to SMTP server 60.191.124.236 (60.191.124.236: 25), connect timeout)
Postconf-n is as follows:
Alias_database = hash:/etc/aliases
Alias_maps = hash:/etc/aliases
Command_directory =/usr/sbin
Config_directory =/etc/postfix
Daemon_directory =/usr/libexec/postfix
Debug_peer_level = 2
Html_directory = no
Inet_interfaces = all
Mail_owner = postfix
Mailq_path =/usr/bin/mailq. postfix
Manpage_directory =/usr/share/man
Mydestination = $ myhostname, localhost. $ mydomain, localhost
Mynetworks = 192.168.154.0/24 127.0.0.0/8
Myorigin = $ mydomain
Newaliases_path =/usr/bin/newaliases. postfix
Queue_directory =/var/spool/postfix
Readme_directory =/usr/share/doc/postfix-2.3.3/README_FILES
Sample_directory =/usr/share/doc/postfixed-2.3.3/samples
Sendmail_path =/usr/sbin/sendmail. postfix
Setgid_group = postdrop
Unknown_local_recipient_reject_code = 550
Virtual_alias_maps = mysql:/etc/postfix/mysql-aliases.cf
Virtual_gid_maps = static: 89
Virtual_mailbox_base =/home/postfix
Virtual_mailbox_domains = mysql:/etc/postfix/mysql-domains.cf
Virtual_mailbox_maps = mysql:/etc/postfix/mysql-users.cf
Virtual_uid_maps = static: 89

I just did a test in the virtual machine. The mail can be sent, but it cannot be received.
The environment is as follows: postfix, mysql, dovocet, apache,
Please help.