是否可以从我的Java应用程序使用GMail帐户发送电子邮件?我已经用Java应用程序配置了我的公司邮件服务器来发送电子邮件,但当我分发应用程序时,这并不会削减它。使用Hotmail, Yahoo或GMail的任何答案都是可以接受的。
当前回答
Other people have good answers above, but I wanted to add a note on my experience here. I've found that when using Gmail as an outbound SMTP server for my webapp, Gmail only lets me send ~10 or so messages before responding with an anti-spam response that I have to manually step through to re-enable SMTP access. The emails I was sending were not spam, but were website "welcome" emails when users registered with my system. So, YMMV, and I wouldn't rely on Gmail for a production webapp. If you're sending email on a user's behalf, like an installed desktop app (where the user enters their own Gmail credentials), you may be okay.
此外,如果你使用Spring,这里有一个使用Gmail进行出站SMTP的工作配置:
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="defaultEncoding" value="UTF-8"/>
<property name="host" value="smtp.gmail.com"/>
<property name="port" value="465"/>
<property name="username" value="${mail.username}"/>
<property name="password" value="${mail.password}"/>
<property name="javaMailProperties">
<value>
mail.debug=true
mail.smtp.auth=true
mail.smtp.socketFactory.class=java.net.SocketFactory
mail.smtp.socketFactory.fallback=false
</value>
</property>
</bean>
其他回答
一个简单的方法是为POP3访问配置/启用gmail帐户。这将允许您通过gmail服务器通过普通SMTP发送邮件。
然后通过smtp.gmail.com发送(端口587)
如果你想使用outlook和Javamail API,那么使用
smtp-mail.outlook.com
更多和完整的工作代码检查这个答案。
当您需要在同一个JVM中任意位置设置多个SMTP会话时,所发布的代码解决方案可能会导致问题。
JavaMail FAQ建议使用
Session.getInstance(properties);
而不是
Session.getDefaultInstance(properties);
因为getDefault只会使用第一次调用时给出的属性。以后对默认实例的所有使用都将忽略属性更改。
见http://www.oracle.com/technetwork/java/faq - 135477. # getdefaultinstance html
尽管这个问题已经结束,我想发布一个计数器解决方案,但现在使用简单Java邮件(开源JavaMail smtp包装器):
final Email email = new Email();
String host = "smtp.gmail.com";
Integer port = 587;
String from = "username";
String pass = "password";
String[] to = {"to@gmail.com"};
email.setFromAddress("", from);
email.setSubject("sending in a group");
for( int i=0; i < to.length; i++ ) {
email.addRecipient("", to[i], RecipientType.TO);
}
email.setText("Welcome to JavaMail");
new Mailer(host, port, from, pass).sendMail(email);
// you could also still use your mail session instead
new Mailer(session).sendMail(email);
Other people have good answers above, but I wanted to add a note on my experience here. I've found that when using Gmail as an outbound SMTP server for my webapp, Gmail only lets me send ~10 or so messages before responding with an anti-spam response that I have to manually step through to re-enable SMTP access. The emails I was sending were not spam, but were website "welcome" emails when users registered with my system. So, YMMV, and I wouldn't rely on Gmail for a production webapp. If you're sending email on a user's behalf, like an installed desktop app (where the user enters their own Gmail credentials), you may be okay.
此外,如果你使用Spring,这里有一个使用Gmail进行出站SMTP的工作配置:
<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="defaultEncoding" value="UTF-8"/>
<property name="host" value="smtp.gmail.com"/>
<property name="port" value="465"/>
<property name="username" value="${mail.username}"/>
<property name="password" value="${mail.password}"/>
<property name="javaMailProperties">
<value>
mail.debug=true
mail.smtp.auth=true
mail.smtp.socketFactory.class=java.net.SocketFactory
mail.smtp.socketFactory.fallback=false
</value>
</property>
</bean>
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