Baru-baru ini saya menyiapkan server surat pada linode menggunakan Postfix, Dovecot dan MySQL. Saya dapat mengirim dan menerima email dari klien email (Outlook) tetapi setiap kali saya mencoba mengirim email dengan pengguna dari situs wordpress yang saya rancang itu tidak berfungsi. Berikut ini adalah output dari log kesalahan:
Oct 27 18:36:52 hostname postfix/master[29738]: reload -- version 2.11.0, configuration /etc/postfix
Oct 27 18:37:00 hostname postfix/master[29738]: terminating on signal 15
Oct 27 18:37:00 hostname postfix/master[8304]: daemon started -- version 2.11.0, configuration /etc/postfix
Oct 27 18:37:12 hostname postfix/smtpd[8309]: warning: hostname mydomain.com does not resolve to address 2a01:7e00::f03c:91ff:fecf:e7a6
Oct 27 18:37:12 hostname postfix/smtpd[8309]: connect from unknown[2a01:7e00::f03c:91ff:fecf:e7a6]
Oct 27 18:37:12 hostname postfix/smtpd[8309]: lost connection after UNKNOWN from unknown[2a01:7e00::f03c:91ff:fecf:e7a6]
Oct 27 18:37:12 hostname postfix/smtpd[8309]: disconnect from unknown[2a01:7e00::f03c:91ff:fecf:e7a6]
File main.cf saya sudah siap jadi:
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
append_dot_mydomain = no
readme_directory = no
smtpd_tls_cert_file=/etc/dovecot/dovecot.pem
smtpd_tls_key_file=/etc/dovecot/private/dovecot.pem
smtpd_use_tls=yes
smtpd_tls_auth_only = yes
smtp_tls_security_level = may
smtpd_tls_security_level = may
dovecot
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_auth_enable = yes
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = hostname.mydomain.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = mydomain.com, hostname.mydomain.com, localhost.mydomain.com, localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
message_size_limit = 20480000
virtual_transport = lmtp:unix:private/dovecot-lmtp
virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf
virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf, mysql:/etc/postfix/mysql-virtual-email2email.cf
Oct 28 11:34:22 hostname postfix/smtpd[14321]: warning: hostname mydomain.com does not resolve to address 139.162.209.129 Oct 28 11:34:22 hostname postfix/smtpd[14321]: connect from unknown[139.162.209.129] Oct 28 11:34:22 hostname postfix/smtpd[14321]: lost connection after UNKNOWN from unknown[139.162.209.129] Oct 28 11:34:22 hostname postfix/smtpd[14321]: disconnect from unknown[139.162.209.129]postfix/smtpd[20609]: connect from localhost[127.0.0.1] lost connection after UNKNOWN from localhost[127.0.0.1] disconnect from localhost[127.0.0.1]saya tidak dapat mengerti mengapa ini terjadi karena ip "127.0.0.1" terdaftar di antara jaringan yang diizinkan.