質問編集履歴

3

追記

2021/12/08 23:30

投稿

Patao_program
test CHANGED
File without changes
test CHANGED
@@ -108,4 +108,50 @@
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+ プロバイダーに直接アクセス
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+
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+ ```
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+
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+ -> % openssl s_client --connect mail.gol.com:587
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+
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+ CONNECTED(00000003)
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+
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+ 140245503800640:error:1408F10B:SSL routines:ssl3_get_record:wrong version number:../ssl/record/ssl3_record.c:331:
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+
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+ ---
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+
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+ no peer certificate available
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+
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+ ---
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+
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+ No client certificate CA names sent
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+
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+ ---
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+
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+ SSL handshake has read 5 bytes and written 304 bytes
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+
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+ Verification: OK
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+
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+ ---
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+ New, (NONE), Cipher is (NONE)
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+
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+ Secure Renegotiation IS NOT supported
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+ Compression: NONE
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+
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+ Expansion: NONE
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+
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+ No ALPN negotiated
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+
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+ Early data was not sent
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+ Verify return code: 0 (ok)
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+
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+ ---
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+
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+ ```
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+
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+
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  OS Ubuntu Server 20.04.3 LTS

2

追記

2021/12/08 23:30

投稿

Patao_program
test CHANGED
File without changes
test CHANGED
@@ -90,7 +90,7 @@
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  ```
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- openssl version
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+ versions
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  ```
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@@ -98,4 +98,14 @@
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  OpenSSL 1.1.1f 31 Mar 2020
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+
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+ -> % postconf | grep mail_version
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+ mail_version = 3.4.13
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+
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  ```
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+
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+
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+
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+ OS Ubuntu Server 20.04.3 LTS

1

追記

2021/12/08 23:27

投稿

Patao_program
test CHANGED
File without changes
test CHANGED
@@ -10,18 +10,92 @@
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  ### 該当のソースコード
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- mail.log
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+ postconf -n
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  ```
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- Dec 8 21:27:49 patao-server postfix/smtp[36236]: SSL_connect error to mail.gol.com[203.216.5.115]:587: -1
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+ broken_sasl_auth_clients = yes
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+ command_directory = /usr/sbin
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+ compatibility_level = 2
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- Dec 8 21:27:49 patao-server postfix/smtp[36236]: EDC071A2C8A: to=<宛先>, relay=mail.gol.com[203.216.5.115]:587, delay=406, delays=406/0.03/0.12/0, dsn=4.7.5, status=deferred (Cannot start TLS: handshake failure)
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+ daemon_directory = /usr/lib/postfix/sbin
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+ data_directory = /var/lib/postfix
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+ debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5
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+ inet_interfaces = all
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+
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+ inet_protocols = ipv4
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+
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+ mail_spool_directory = /var/spool/mail/
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+
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+ mailq_path = /usr/bin/mailq
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+
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+ masquerade_domains = patapatao.com
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+
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+ mydestination = $myhostname,$mydomain,localhost
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+
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+ mydomain = patapatao.com
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+
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+ myhostname = mail.patapatao.com
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+
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+ mynetworks = 127.0.0.0/8 192.168.10.0/24
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+
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+ myorigin = $mydomain
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+
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+ sendmail_path = /usr/sbin/sendmail
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+
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+ setgid_group = postdrop
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+
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+ smtp_sasl_auth_enable = yes
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+
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+ smtp_sasl_mechanism_filter = plain,login
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+
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+ smtp_sasl_password_maps = hash:/etc/postfix/relay_password
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+
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+ smtp_sasl_security_options = noanonymous
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+
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+ smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
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+
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+ smtp_tls_security_level = encrypt
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+
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+ smtp_tls_wrappermode = yes
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+
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+ smtpd_banner = $myhostname ESMTP $mail_name (PATAO Server)
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+
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+ smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
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+
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+ smtpd_sasl_auth_enable = yes
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+
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+ smtpd_sasl_security_options = noanonymous
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+
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- Dec 8 21:32:49 patao-server postfix/smtp[36306]: warning: TLS library problem: error:1408F10B:SSL routines:ssl3_get_record:wrong version number:../ssl/record/ssl3_record.c:331:
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+ smtpd_tls_cert_file = /etc/letsencrypt/live/mail.patapatao.com/fullchain.pem
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+
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+ smtpd_tls_key_file = /etc/letsencrypt/live/mail.patapatao.com/privkey.pem
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+
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+ smtpd_tls_loglevel = 1
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+
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+ smtpd_tls_received_header = yes
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+
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+ smtpd_tls_session_cache_database = btree:/var/lib/postfix/smtpd_scache
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+
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+ smtpd_tls_session_cache_timeout = 3600s
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+
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+ transport_maps = hash:/etc/postfix/transport
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+
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+ unknown_local_recipient_reject_code = 550
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  ```
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+
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+ openssl version
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+
95
+ ```
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+
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+ -> % openssl version
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+
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+ OpenSSL 1.1.1f 31 Mar 2020
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+
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+ ```