CANNOT RETRIEVE EMAILS FROM THE SERVER (CENTOS 7 / SENDMAIL / DOVECOT)

I have recently installed CentOS 7 server with Sendmail and Dovecot 2.2.10. When I send an email from outside the server to a particular user in the server, the email is delivered to the server in the directory /var/spool/mail/. When I try to retrieve the email from my personal computer (outside the server and another location) using Evolution, I do not get any error, but the message is not retrieved.

The configuration of the Dovecot are as follows:

dovecot.conf
protocols = imap pop3 lmtp
listen = *, ::

10-auth.conf
disable_plaintext_auth = no
auth_mechanisms = plain login

10-mail.conf
mail_location = maildir:~/Maildir

After trying to retrieve the email from the server using Evolution from my personnal computer and if I go to /var/log/maillog I can see the log related to my attempt to retrieve the email:
May 31 14:40:35 IS-56014 dovecot: pop3-login: Login: user=<farid>, method=PLAIN, rip=83.132.146.40, lip=95.154.237.50, mpid=24407, TLS, session=<vwOcENJQXgBThJIo>
May 31 14:40:35 IS-56014 dovecot: pop3(farid): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0

I would appreciate very much any help I can get to resolve this problem.

Thank you.

 

Hi .
I have solved the problem as follows:

In 10-mail.conf changed:
mail_location = mbox:~/mail:INBOX=/var/mail/%u

In the file 10-master.conf:
port = 143
port = 110

Finally, according to wiki2.dovecot.org/Errors/ChgrpNoPerm I have changed the permissions as follows:
chmod 0600 /var/mail/*

This is the output of dovecot -n

# 2.2.10: /etc/dovecot/dovecot.conf
# OS: Linux 3.10.0-514.21.1.el7.x86_64 x86_64 CentOS Linux release 7.3.1611 (Core)
disable_plaintext_auth = no
first_valid_uid = 1000
mail_location = mbox:~/mail:INBOX=/var/mail/%u
mbox_write_locks = fcntl
namespace inbox {
inbox = yes
location =
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
special_use = \Trash
}
prefix =
}
passdb {
driver = pam
}
passdb {
driver = pam
}
service imap-login {
inet_listener imap {
port = 143
}
}
service pop3-login {
inet_listener pop3 {
port = 110
}
}
ssl = required
ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
ssl_key = </etc/pki/dovecot/private/dovecot.pem
userdb {
driver = passwd
}
userdb {
driver = passwd
}

Best regards.