Sqirrelmail、Postfix和Dovecot

Question

我已经安装了Sqirrelmail，Postfix和Dovecot。Sqirrelmail不会中继任何错误。没有邮件的传入或发送。

其中"user1“是登录到Sqirrelmail的用户。

有人能看到我的问题吗？

在var/log/mail.log中

Jun 20 18:40:37 ip-172-31-25-194 dovecot: imap-登录:登录: user=，method=PLAIN，rip=127.0.0.1，lip=127.0.0.1，mpid=13181，secured，session=

Jun 20 18:40:37 ip-172-31-25-194 dovecot: imap(user1)：已断开连接:已注销in=44 out=831

Jun 20 18:40:37 ip-172-31-25-194 dovecot: imap-登录:登录: user=，method=PLAIN，rip=127.0.0.1，lip=127.0.0.1，mpid=13183，secured，session=

Jun 20 18:40:37 ip-172-31-25-194 dovecot: imap(user1)：已断开连接:已注销in=285 out=1659

Jun 20 18:40:44 ip-172-31-25-194后缀/smtpd13184:从localhost127.0.0.1连接

Jun 20 18:40:44 ip-172-31-25-194后缀/smtpd13184: 6090B41CF0: client=localhost127.0.0.1

Jun 20 18:40:44 ip-172-31-25-194后缀/清理13187: 6090B41CF0: message-id=6afb833b41b27d476223ad9c04ae5a6c.squirrel@xxxxx.com

Jun 20 18:40:44 ip-172-31-25-194后缀/qmgr29043: 6090B41CF0: from=，size=699，nrcpt=1 (活跃队列)

Jun 20 18:40:44 ip-172-31-25-194 postfix/smtpd13184:断开与localhost127.0.0.1的连接

Jun 20 18:40:44 ip-172-31-25-194 dovecot: imap-登录:登录: user=，method=PLAIN，rip=127.0.0.1，lip=127.0.0.1，mpid=13189，secured，session=

Jun 20 18:40:44 ip-172-31-25-194 dovecot: imap(user1)：已断开连接:已注销in=600 out=524

Jun 20 18:40:44 ip-172-31-25-194 dovecot: imap-登录:登录: user=，method=PLAIN，rip=127.0.0.1，lip=127.0.0.1，mpid=13191，secured，session=

Jun 20 18:40:44 ip-172-31-25-194 dovecot: imap(user1)：已断开连接:已注销in=117 out=1535

Answer 1

Update, I can now send mail to external domains, but not receive from external domains.
But user1@mydomain.com & user2@mydomain.com can send and receive emails to each other.

MX record exists:
10  @   mail.mydomain.com   1 Hour  
0   @   smtp.mydomain.com   1 Hour

doveconf -n

auth_mechanisms = plain login
mail_location = maildir:~/Maildir
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
}
protocols = pop3 imap
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
}
ssl = no
userdb {
  driver = passwd
}

postconf -n

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
config_directory = /etc/postfix
home_mailbox = Maildir/
inet_interfaces = all
inet_protocols = ipv4
mailbox_size_limit = 0
mydestination = mydomain.com, ip-172-31-25-194.us-west-2.compute.internal, localhost.us-west-2.compute.internal, localhost
myhostname = mydomain.com
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
myorigin = /etc/mailname
queue_directory = /var/spool/postfix
readme_directory = no
recipient_delimiter = +
relayhost =
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes