我在 Fedora 上配置邮件服务器，但遇到了一个问题。
我可以使用 Horde 进行身份验证，但是，当我尝试使用 THunderbird 进行身份验证时，收到以下消息：configuration could not be verified - is the username or password wrong
我/var/log/maillog得到：
12 月 28 日 15:44:58 例如 cyrus/imap[17892]: STARTTLS 协商失败: [192.168.1.158]
我的/etc/imapd.conf
configdirectory: /var/lib/imap
partition-default: /var/spool/imap
partition-news: /var/spool/news
newsspool: /var/spool/news
altnamespace: no
unixhierarchysep: no
lmtp_downcase_rcpt: yes
admins: cyrus
allowanonymouslogin: no
popminpoll: 1
autocreatequota: 10000
umask: 077
sendmail: /usr/sbin/sendmail
sieveusehomedir: false
sievedir: /var/spool/sieve
hashimapspool: true
allowplaintext: yes
sasl_mech_list: PLAIN LOGIN CRAM-MD5 DIGEST-MD5
sasl_pwcheck_method: auxprop
sasl_auxprop_plugin: sasldb
sasl_auto_transition: no
tls_cert_file: /etc/pki/cyrus-imapd/cyrus-imapd.pem
tls_key_file: /etc/pki/cyrus-imapd/cyrus-imapd.pem
tls_ca_file: /etc/pki/tls/certs/ca-bundle.crt
tls_ca_path: /var/imap
tls_session_timeout: 1440
tls_cipher_list: TLSv1+HIGH:!aNULL:@STRENGTH
update_retry_delay
idlemethod: poll
idlesocket: /var/run/cyrus/socket/idle
notifysocket: /var/run/cyrus/socket/notify
syslog_prefix: cyrus
我该如何纠正这个问题？