[英]Use PHP sendmail from Docker container to send through host Postfix
I want to send mail from my Alpine-PHP-Fpm container using my host postfix installation.我想使用我的主机 postfix 安装从我的 Alpine-PHP-Fpm 容器发送邮件。
PHP-Fpm Container -> Sendmail -> PostFix on host -> Sending via SMTP PHP-Fpm 容器 -> Sendmail -> 主机上的 PostFix -> 通过 SMTP 发送
But I get但我得到
sendmail: can't connect to remote host (127.0.0.1): Connection refused
sendmail:无法连接到远程主机(127.0.0.1):连接被拒绝
Here is the Postfix config:这是后缀配置:
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
append_dot_mydomain = no
readme_directory = no
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = MYDOMAIN.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = localhost.com, localhost
# SMTP authentication settings
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = static:no-reply@MYDOMAIN.com:SECRETPSW
smtp_sasl_security_options = noanonymous
smtp_tls_security_level = may
#header_size_limit = 4096000
relay_destination_concurrency_limit = 20
# Limit DOS Attacks
default_process_limit = 100
smtpd_client_connection_count_limit = 10
smtpd_client_connection_rate_limit = 30
queue_minfree = 20971520
header_size_limit = 51200
message_size_limit = 10485760
smtpd_recipient_limit = 100
# Default relayhost setting
relayhost = smtp.MYDOMAIN.com
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 172.18.0.3 # Fpm container IP
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = 172.18.0.1 # Docker0 bridge IP
inet_protocols = all
And here is the php.ini mail section:这是 php.ini 邮件部分:
[mail function]
SMTP = localhost
smtp_port = 25
sendmail_path = "/usr/sbin/sendmail -t -i"
mail.add_x_header = On
Are there any ports that I need to open in my docker-compose file or in the host firewall settings?是否需要在 docker-compose 文件或主机防火墙设置中打开任何端口?
I'm not sure about using the host's config/postfix however I can suggest an alternative solution that may work just as well.我不确定是否使用主机的配置/后缀,但是我可以建议一个可能同样有效的替代解决方案。 Add a postfix container and copy the configs from the host to the container:
添加一个 postfix 容器并将配置从主机复制到容器:
services:
application:
image: some-company/some-application
environment:
- APPLICATION_ENV
ports:
- 80:80
smtp:
image: namshi/smtp
environment:
- MAILNAME
- SMARTHOST_USER
- SMARTHOST_PASSWORD
volumes:
- /etc/postfix/main.cf:/etc/postfix/main.cf
ports:
- 25:25
Then you can use smtp
as your mailer host / transport and the user/pass from the environment.然后您可以使用
smtp
作为您的邮件主机/传输和来自环境的用户/通行证。
I am not a container expert, but if I understood correctly, you are trying to acccess 127.0.0.1 within the container (php.ini localhost config resolves to 127.0.0.1), and I assume that is not the hosts address, it points to the container internals.我不是容器专家,但如果我理解正确,您正在尝试访问容器内的 127.0.0.1(php.ini localhost 配置解析为 127.0.0.1),我认为这不是主机地址,它指向容器内部。
Figure out the host IP and change in the php.ini:找出主机IP并在php.ini中更改:
[mail function]
SMTP = host_address
smtp_port = 25
The best solution which I have found is to install msmtp and add the following to the php.ini我发现的最佳解决方案是安装 msmtp 并将以下内容添加到 php.ini
sendmail_path = /usr/bin/msmtp -t --host host.docker.internal --from php@docker
Now your mail will be received by your mail server (smpt4dev or mailh现在您的邮件将被您的邮件服务器(smpt4dev 或 mailh)接收
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