【SP2】【arm/x86】postfix不支持hash字典类型导致python发送邮件失败

【环境信息】
系统:sp2
版本信息如下
![输入图片说明](https://images.gitee.com/uploads/images/2021/0511/105153_03786272_7361815.png "1.png")

【问题复现步骤】

1. 安装相关包
dnf -y install bind postfix
2. 关闭防火墙和selinux
systemctl stop firewalld
    setenforce 0
3. 配置域,其中变量ip是本地ipV4值
    sed -i '19s/localhost/any/g' /etc/named.conf
    ip1=$(echo "ip" | awk -F '.' '{print $1}')

ip2=$(echo "ip" | awk -F '.' '{print $2}')

ip3=$(echo "ip" | awk -F '.' '{print $3}')

echo "zone \"wjf.com\" IN {
    type master;
    file \"wjf.com.zone\";
    };
    zone \"${ip3}.${ip2}.${ip1}.in-addr.arpa\" {
    type master;
    file \"wjf.com.local\";
    };" >>/etc/named.rfc1912.zones

(
        cd /var/named || exit 1
        cp -p named.localhost wjf.com.zone
        sed -i '8s/@/mail.wjf.com./g' wjf.com.zone
        sed -i '9s/A/MX 10/g' wjf.com.zone
        sed -i '9s/127.0.0.1/mail.wjf.com./g' wjf.com.zone
        sed -i '10d' wjf.com.zone
        echo "mail    IN A    ${NODE1_IPV4}" >>wjf.com.zone
        cp -p named.localhost wjf.com.local
        sed -i 's/@/wjf.com/2' wjf.com.local
        sed -i '8s/@/mail.wjf.com./g' wjf.com.local
        sed -i '9s/A/MX 10/g' wjf.com.local
        sed -i '9s/127.0.0.1/mail.wjf.com./g' wjf.com.local
        sed -i '10d' wjf.com.local
        echo "10      PTR    mail.wjf.com." >>wjf.com.local
    )

echo "nameserver ip" >>/etc/resolv.conf
    systemctl start named
4. 修改postfix配置文件
postconf -e 'myhostname = mail.wjf.com'
    postconf -e 'mydomain = wjf.com'
    postconf -e "myorigin = \$mydomain"
    postconf -e "inet_interfaces = all"
    postconf -e "mydestination = \$myhostname, \$mydomain"
    postconf -e "home_mailbox = Maildir/"
    systemctl start postfix
5. 增加邮件测试用户
groupadd mailusers
    useradd -g mailusers -m wjfmail
    echo "openEuler12#$" | passwd --stdin wjfmail
6. 使用python3发送邮件,python3代码见附件
python3 mail.py "root@wjf.com" "wjfmail@wjf.com" "i ai zyy!"

【预期结果】

1. 发送邮件成功

【实际结果】

1. 发送失败,失败日志如截图
![输入图片说明](https://images.gitee.com/uploads/images/2021/0511/105906_e8adbe22_7361815.png "2.png")
使用postconf -m 查询支持的类型的确没有hash类型

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