在Ubuntu上配置邮件服务器的DKIM(DomainKeys Identified Mail)签名,可以按照以下步骤进行:
1. 安装必要的软件包
首先,确保你的系统已经安装了opendkim
和opendkim-tools
。你可以使用以下命令来安装它们:
sudo apt update sudo apt install opendkim opendkim-tools
2. 配置OpenDKIM
编辑OpenDKIM的配置文件/etc/opendkim.conf
。你可以使用你喜欢的文本编辑器,例如nano
:
sudo nano /etc/opendkim.conf
在配置文件中,你需要设置以下参数:
Domain
: 你的域名。Selector
: DKIM选择器,通常是一个简短的字符串,例如default
。KeyFile
: DKIM私钥文件的路径。Socket
: OpenDKIM监听的套接字类型,通常是inet:12301@localhost
。
示例配置:
Domain example.com Selector default KeyFile /etc/opendkim/keys/example.com/default.private Socket inet:12301@localhost
3. 生成DKIM密钥对
如果你还没有DKIM密钥对,可以使用以下命令生成:
sudo opendkim-genkey -t -s default -d example.com
这将在/etc/opendkim/keys/example.com/
目录下生成私钥和公钥文件。
4. 配置DNS记录
在DNS管理面板中,添加一个TXT记录来发布DKIM公钥。TXT记录的名称应该是_domainkey.yourdomain.com
,值应该是公钥文件的内容。
例如,如果你的域名是example.com
,TXT记录的名称应该是_domainkey.example.com
,值应该是:
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8kGa1pSjbSYZVebtTRBLxBz5H4I6tj6hVb1Jl7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2Jm5l7y4eTl7O2