How to send an email to a java program

Question

I'd like to write a program, probably a servlet or something to run on the a google app engine that I can send an email to. So not a program to send email, but one that can receieve it and parse it.

My question is, what code or API are out there that can receive an email?

Answer 1

Basically on your google app engine you can use an inbound mail service.

Please see this documentation for more information.

http://code.google.com/appengine/docs/java/mail/overview.html#Receiving_Mail_in_Java

Answer 2

You cant send an email to a program, you send an email to a server, so what you are looking for is a way to access an email server via your program. Unfortunately there is no single solution here, you need to configure your program for every different email account/server you want to access. (If you have ever set up an account in outlook or something like it you will get the idea)

For example here is a link to the gmail api, you could use this to access gmail accounts http://code.google.com/apis/gmail/

Answer 3

您需要有一个邮箱才能在此处发送消息，并且您可以使用以下代码阅读消息： http : //www.java2s.com/Code/Java/Network-Protocol/GetEmailMessageExample.htm

Answer 4

This can be done with a built in Java library.

javax.mail

Check out this link . It should be able to help you get started.

This won't work for every mail server, but depending on your setup it might help.

Answer 5

To send an email to a Java program, that program must be running. Generally that means a server style (aka service) receiver is favored.

For the email to be received, the Java service must understand an email protocol. There are a number of protocols, but SMTP is the standard for receiving email. Once you have a service that understands SMTP protocol for receiving email, you have written a mail server.

Note that most people don't care to write a mail server, as a mail client needs to connect to the server and pull the email to make it readable. Keep this in mind when designing the solution to your problem.