使用postfix搭建邮件服务
Dockerfile
FROM alpine:3
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apk/repositories
RUN apk update && apk add tzdata postfix
RUN cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
&& echo "Shanghai/Asia" > /etc/timezone \
&& apk del tzdata
RUN echo $' \n\
mynetworks = 127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16 \n\
maillog_file = /dev/stdout \n\
' >> /etc/postfix/main.cf
CMD ["postfix", "start-fg"]
邮件发送测试
echo "hello"|mail -s "title" xxx@qq.com
python
import smtplib
server = smtplib.SMTP('127.0.0.1', 8025)
server.sendmail('1111@123.com', ['xxx@qq.com'], 'hello')
邮件发送不成功原因
said: 550 Domain may not exist or DNS check failed
发件人要填写成1111@123.com，不能只写1111
NOQUEUE: reject: RCPT from unknown[172.17.0.1]: 454
配置文件/etc/postfix/main.cf添加一行mynetworks = 127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16
said: 550 SPF check failed
said: 550 Mailbox unavailable or access denied
postfix服务器的IP被收件服务器拒绝了，只能换不在黑名单的IP
参考链接
- https://www.frakkingsweet.com/postfix-in-a-container/