Postfix
Postfix - gmail 加密
我的伺服器在 Ubuntu 14.04 上執行,並且我安裝了 Postfix。當我向我的 gmail 帳戶發送內容時,它會進入垃圾郵件。我設置了 SPF、DKIM 和 DMARC,這是一個確認:
Authentication-Results: mx.google.com; dkim=pass header.i=@mydomain.com; spf=pass (google.com: domain of office@mydomain.com designates xxx.xxx.xx.xxx as permitted sender) smtp.mailfrom=office@mydomain.com; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=mydomain.com
但是有一個紅色的掛鎖說:
encryption: mydomain.com did not encrypt this message
。其他人的電子郵件有這樣的註釋:
encryption: Standard (TLS)
你能幫我一下嗎,我該怎麼辦?這可能是來自我伺服器的電子郵件進入垃圾郵件的原因嗎?提前致謝。
我的
/etc/postfix/main.cf
: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 smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination myhostname = mail.mydomain.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = mydomain.com, bociuch, 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 inet_protocols = all milter_protocol = 2 milter_default_action = accept smtpd_milters = inet:localhost:12301 non_smtpd_milters = inet:localhost:12301
您缺少該
smtp_tls_security_level
指令。smtp_tls_security_level = may
這會將其設置為機會性 TLS,如果伺服器支持,則使用加密連接,但如果伺服器不支持,則允許未加密連接。
smtp_tls_security_level
的預設值為none
。