Function use for fetching mail body in java mail api

Question

sir,
plz tell us the function so that we can fetch mails from the specific mailbox to our mailclient in java mail api

Answer 1

Ok so, i've tracked down the rfc pages for POP3 and SMTP. But these are general guidelines and specifications independent of a programming language. Do you know what java libraries and APIs I should be looking at ? You assume to much.
There are only two possibilities
1. Code already exists to do thi.
2. You are going to have to figure it out yourself.
If you want the first then I believe I already suggested that you could find already built servers.
If the second then a significant part of learning how to do it yourself is not only knowing what to use but also knowing what not to use. And you won't find the second if someone tells you.
I can tell you that you will need to implement the following
1. Storage. Storing the emails either in files or a database.
2. Running a server. How do you get a server to run all the time? How do you get it to run when the computer reboots?
3. How does it keep trying to send/receive when you are not there to push a button? How do you keep it from completely using up the CPU/IO on your box while it is still doing that.
4. How would you actually make your server available to others? How would it interact with other servers? (This is easy to understand and very hard to do.)
Yes, it exists and is called the JavaMail APIYep.
Your steps at this point.
1. Get that to work with your current email server. You should be able to send email to yourself.
2. Once it works then go back to determine what additional logging and error notifications you can get from it. For example what happens if you give it the wrong host name, what happens if you use the wrong protocol for a given port.
Once you have done that then you will have a tool that you can use to test your own email server and the experience to understand some of the problems.