参考文档：

如何在 DNS 服务器上配置域名：https://help.aliyun.com/knowledge_detail/39397.html?spm=5176.2020520150.102.d6.12837528Fc1Cy5

开通邮件服务：https://www.aliyun.com/product/directmail?spm=a2c4g.11186623.2.13.62122b31hNdHdL

API：https://help.aliyun.com/document_detail/29435.html

1. 首先得有个域名

2. 开通 邮件服务后，进入管理台，新增 发件域名，在弹出框中输入 域名，例如我的是  memory-back.club，然后点击配置

3. 拷贝配置到 域名解析配置处：

具体操作步骤：

（1）在解析设置页面添加 4条记录

第一条： 类型为 MX 的：

对应 收信配置中的 MX验证，类型、记录值一定要对应

第二条：类型为 TXT 的：

对应 发件设置中的 所有权验证，类型、主机记录、记录值一定要对应

第三条：类型为 TXT的：

对应 发信配置 中的 spf验证，类型、记录值 一定要对应

第四条：类型为 CNAME 的：

对应 跟踪配置中 的CNAME验证

4. 返回，点击 验证，点击确定

除了 spf验证 要慢点，其他的几乎秒级验证

当看到 状态 不为 待验证 时，即可使用

5. 添加 发件地址：

同时添加一下回信地址（就是用户 回复邮件了，发到哪个地址，如果不配置，用户回复了就无法收到），添加完后，点击验证回信地址，即确保回信邮箱是正常的

然后去回信邮箱点击 验证链接 即可验证成功

6. 服务端开发：

如果其他模块已经引入

aliyun-java-sdk-core
的其他版本，建议 邮件服务放入单独的模块，因为 该依赖版本较低，如果放一起，会造成依赖冲突

（1）引入依赖：

http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
amazingcenter com.team.amazingcenter 1.0-SNAPSHOT
4.0.0

<artifactId>amazingcenter-email</artifactId>  
<packaging>jar</packaging>  

<name>amazingcenter-email</name>  
<url>http://maven.apache.org</url>  

<dependencies>  
    <dependency>  
        <groupId>com.aliyun</groupId>  
        <artifactId>aliyun-java-sdk-core</artifactId>  
        <version>3.0.0</version>  
    </dependency>  
    <dependency>  
        <groupId>com.aliyun</groupId>  
        <artifactId>aliyun-java-sdk-dm</artifactId>  
        <version>3.1.0</version>  
    </dependency>  
    <dependency>  
        <groupId>com.alibaba</groupId>  
        <artifactId>fastjson</artifactId>  
        <version>1.2.70</version>  
    </dependency>  
    <dependency>  
        <groupId>com.team.amazingcenter</groupId>  
        <artifactId>amazingcenter-common</artifactId>  
    </dependency>  
</dependencies>  

（2）实体类

package com.team.amazingcenter.email.vo;

import lombok.Data;

import java.util.Date;

/**
* @version DataEmailVO.java v2.0
* @description:
* @author: wenze
* @create: 2020/9/10 17:47
**/
@Data
public class DataEmailVO {

private String toAddress;

private String subject;

private String textBody;

private String attachUrl;

private Byte emailBusinessType;

private Byte sended;

private Date sendTime;

private String ip;

private String regionId;

private Integer addressType;

private Byte replyToAddress;

private String htmlBody;  

}

（3）EmailUtils：

package com.team.amazingcenter.email.utils;

import com.alibaba.fastjson.JSON;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.dm.model.v20151123.BatchSendMailRequest;
import com.aliyuncs.dm.model.v20151123.BatchSendMailResponse;
import com.aliyuncs.dm.model.v20151123.SingleSendMailRequest;
import com.aliyuncs.dm.model.v20151123.SingleSendMailResponse;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
import com.aliyuncs.profile.DefaultProfile;
import com.team.amazingcenter.common.enumerate.AcceptLanguageEnum;
import com.team.amazingcenter.common.enumerate.locale.LocaleEnum;
import com.team.amazingcenter.common.utils.PropertiesUtil;
import com.team.amazingcenter.email.vo.DataEmailVO;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.util.ObjectUtils;

import java.util.Objects;

/**
* @version EmailUtils.java v2.0
* @description: 邮箱服务
* @author: wenze
* @create: 2020/9/9 21:44
* doc: https://help.aliyun.com/document_detail/29435.html
**/
@Slf4j
public class EmailUtils {

/\*\*  
 \* key  
 \*/  
private static final String ACCESS\_KEY\_ID = PropertiesUtil.getProperty("api\_access\_key\_id");  
/\*\*  
 \* secret  
 \*/  
private static final String ACCESS\_SECRET = PropertiesUtil.getProperty("api\_access\_key\_secret");  
/\*\*  
 \* 管理控制台中配置的发信地址 - 单个  
 \*/  
private static final String ACCOUNT\_NAME\_SINGLE = PropertiesUtil.getProperty("email\_account\_name\_single");  
/\*\*  
 \* 管理控制台中配置的发信地址 - 批量  
 \*/  
private static final String ACCOUNT\_NAME\_BATCH = PropertiesUtil.getProperty("email\_account\_name\_batch");  
/\*\*  
 \* 区域id - 国内  
 \*/  
private static final String EMAIL\_REGION\_ID\_CN = PropertiesUtil.getProperty("email\_region\_id\_cn", "");  
/\*\*  
 \* 区域id - 新加坡  
 \*/  
private static final String EMAIL\_REGION\_ID\_1 = PropertiesUtil.getProperty("email\_region\_id\_1");  
/\*\*  
 \* 区域id - 澳大利亚  
 \*/  
private static final String EMAIL\_REGION\_ID\_2 = PropertiesUtil.getProperty("email\_region\_id\_2");  
/\*\*  
 \* 地址类型。取值：0：为随机账号 1：为发信地址  
 \*/  
private static final Integer ADDRESS\_TYPE = 1;

/\*\*  
 \* 发送邮件  
 \*/  
public static DataEmailVO singleSendMail(SingleSendMailRequest request, String key) {

    DataEmailVO emailVO = new DataEmailVO();

    String regionId = EMAIL\_REGION\_ID\_CN;  
    if (StringUtils.isNotBlank(key) && StringUtils.equals(key, AcceptLanguageEnum.LANGUAGE\_EN\_US.getLanguage())) {  
        regionId = EMAIL\_REGION\_ID\_1;  
    }

    DefaultProfile profile = DefaultProfile.getProfile(regionId, ACCESS\_KEY\_ID, ACCESS\_SECRET);  
    IAcsClient client = new DefaultAcsClient(profile);

    request.setAccountName(ACCOUNT\_NAME\_SINGLE);  
    request.setAddressType(ADDRESS\_TYPE);  
    request.setRegionId(regionId);

    BeanUtils.copyProperties(request, emailVO);  
    emailVO.setReplyToAddress(request.getReplyToAddress() ? (byte) 1 : (byte) 0);

    emailVO.setSended((byte) 2);  
    try {  
        SingleSendMailResponse response = client.getAcsResponse(request);  
        if (Objects.isNull(response) || ObjectUtils.isEmpty(response)) {  
            emailVO.setSended((byte) 1);  
        }  
    } catch (ServerException e) {  
        log.info("ServerException,ErrCode:{},ErrMsg:{},RequestId:{}", e.getErrCode(), e.getErrMsg(), e.getRequestId());  
        return new DataEmailVO();  
    } catch (ClientException e) {  
        log.info("ClientException,ErrCode:{},ErrMsg:{},RequestId:{}", e.getErrCode(), e.getErrMsg(), e.getRequestId());  
        return new DataEmailVO();  
    } catch (Exception e) {  
        log.info("OtherException,ErrCode:{},ErrMsg:{},RequestId:{}", e);  
        return new DataEmailVO();  
    }  
    return emailVO;  
}

/\*\*  
 \* 批量发送邮件  
 \*/  
public void batchSendMail(BatchSendMailRequest request, String key) {  
    String regionId = EMAIL\_REGION\_ID\_CN;  
    if (StringUtils.isNotBlank(key) && StringUtils.equals(key, LocaleEnum.ENG.getKey())) {  
        regionId = EMAIL\_REGION\_ID\_1;  
    }

    DefaultProfile profile = DefaultProfile.getProfile(regionId, ACCESS\_KEY\_ID, ACCESS\_SECRET);  
    IAcsClient client = new DefaultAcsClient(profile);

    request.setRegionId(regionId);

    try {  
        BatchSendMailResponse response = client.getAcsResponse(request);  
        System.out.println(JSON.toJSONString(response));  
    } catch (ServerException e) {  
        e.printStackTrace();  
    } catch (ClientException e) {  
        System.out.println("ErrCode:" + e.getErrCode());  
        System.out.println("ErrMsg:" + e.getErrMsg());  
        System.out.println("RequestId:" + e.getRequestId());  
    }

}  

}

（4）PropertiesUtil

package com.team.amazingcenter.common.utils;

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

/**
* 读取公共配置文件
*
* @author juluo
*
*/
public class PropertiesUtil {

/\*\* 默认的properties \*/  
private static final Properties DEFAULT\_PROPERTIES;  
static {  
    DEFAULT\_PROPERTIES = getPropertiesByFileName("common.properties");  
}

/\*\*  
 \* 获取属性对应的值  
 \*  
 \* @param property  
 \*            属性  
 \* @param defaultValue  
 \*            没找到值返回的默认值  
 \* @return property 对应的值  
 \*/  
public static String getProperty(String property, String defaultValue) {  
    return DEFAULT\_PROPERTIES.getProperty(property, defaultValue);  
}

/\*\*  
 \* 获取属性对应的值  
 \*  
 \* @param property  
 \*            属性  
 \* @return property 对应的值 ,or {@code null}  
 \*/  
public static String getProperty(String property) {  
    return DEFAULT\_PROPERTIES.getProperty(property);  
}

/\*\*  
 \* 通过文件路径载入数据  
 \*  
 \* @param fileName  
 \*            文件路径  
 \* @return {@link Properties}  
 \*/  
public static Properties getPropertiesByFileName(String fileName) {  
    InputStream inputStream = PropertiesUtil.class.getClassLoader().getResourceAsStream(fileName);  
    Properties p = new Properties();  
    if (inputStream == null) {  
        return p;  
    }  
    try {  
        p.load(inputStream);  
    } catch (IOException ex) {  
        throw new RuntimeException(ex);  
    } finally {  
        if (inputStream != null) {  
            try {  
                inputStream.close();  
            } catch (IOException e) {  
                throw new RuntimeException(e);  
            }  
        }  
    }  
    return p;  
}

/\*\*  
 \* 通过属性获取指定文件的值  
 \*  
 \* @param fileName  
 \*            文件名  
 \* @param propertie  
 \*            属性  
 \* @param defaultValue  
 \*            默认值  
 \* @return 属性对应的值  
 \*/  
public static String getProperty(String fileName, String propertie, String defaultValue) {  
    Properties p = getPropertiesByFileName(fileName);  
    return p.getProperty(propertie, defaultValue);  
}

public static void main(String\[\] args) {  
    System.out.println(PropertiesUtil.getProperty("file\_oss\_storage\_path", ""));  
}

}

　　其他模块需要使用时，直接通过 依赖引入的方式即可使用 邮箱服务

com.team.amazingcenter amazingcenter-email 1.0-SNAPSHOT

（5）业务层：

　　　　SingleSendMailRequest request = new SingleSendMailRequest();
request.setToAddress(email);
request.setSubject(I18nMessageUtil.getMessage(acceptLanguage, VerCodeTypeEnum.getDescByDesc(type), ""));
request.setTextBody(I18nMessageUtil.getMessage(acceptLanguage, I18nCodeEnum.PIN.getMsg(), "").replace("code", code));
request.setReplyToAddress(true);

   DataEmailVO vo = EmailUtils.singleSendMail(request, acceptLanguage);