我有一个网站 (safirasaloes.com.br),托管在 DigitalOcean,DNS 设置为 CloudFlare。我尝试在[电子邮件保护]但是我不能。
这里最大的问题是,我没有办法从这些系统获得反馈,从而确定问题出在哪里。所以我不知道我是否在 CloudFlare、DigitalOcean 防火墙或 Postfix 配置上犯了错误。
我的DigitalOcean 服务器是:
- 5000(SSH 连接)
- 80(网络应用程序)
- 443(SSL)
- 25(接收电子邮件)
我在CloudFlare的配置是:
Type Name Value TTL Active
A safirasaloes.com.brpoints to 104.236.43.94 Automatictrue
CNAMEwww is an alias of safirasaloes.com.br Automatictrue
MX safirasaloes.com.brmail handled by mail.safirasaloes.com.br with priority 10Automatic
AAAA safirasaloes.com.brpoints to 2604:a880:800:10::542:b001 Automatictrue
我的 FQDN 在 Postfix 上设置为 safirasaloes.com.br,main.cf 是
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
append_dot_mydomain = no
readme_directory = no
# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = safirasaloes.com.br
#alias_maps = hash:/etc/aliases
virtual_alias_maps = hash:/etc/postfix/virtual
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = safirasaloes.com.br, safirasaloes, localhost.localdomain, localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
答案1
根据我们在评论中的讨论,您的问题是 的safirasaloes.com.br
MX 记录指向mail.safirasaloes.com.br
,但该记录不存在。MX 记录引用的 FQDN 必须可解析,才能传递邮件。