javamail access to a shared mailbox

Question

I'm trying to write an java application that will access a additional, shared mailbox to read emails and perform other activities. I have no problem reading my own INBOX (or its folders & contents) but am having great difficulty finding information on how to access (and ultimately parse/read) a shared mailbox.

Answer 1

With the help from the other answers, I figured out following solution, that works for com.sun.mail:javax.mail:1.6.2

Properties props = new Properties();
props.setProperty("mail.imaps.auth.mechanisms", "LOGIN");
Session session = Session.getInstance(props);
Store store = session.getStore("imaps");
store.connect("outlook.office365.com", 993, "[email protected]\\shared_account_alias", "user_password");

With javax.mail:mail:1.4.7 following code works:

Properties props = new Properties();
props.setProperty("mail.imaps.auth.plain.disable", "true");
Session session = Session.getInstance(props);
Store store = session.getStore("imaps");
store.connect("outlook.office365.com", 993, "[email protected]\\shared_account_alias", "user_password");

shared_account_alias is NOT the email address.

Eventually I have found a more standard way of accessing the shared mailbox:

Properties props = new Properties();
props.setProperty("mail.imaps.sasl.enable", "true");
props.setProperty("mail.imaps.sasl.authorizationid", "shared_account_alias");
Session session = Session.getInstance(props);
Store store = session.getStore("imaps");
store.connect("outlook.office365.com", 993, "[email protected]", "user_password");

Answer 2

I am doing the following and it is working fine for me

properties = System.getProperties();
properties.setProperty("mail.imaps.auth.plain.disable", "true");
properties.setProperty("mail.imaps.auth.ntlm.disable", "true");
Session session = Session.getInstance(properties, null);
store = session.getStore("imaps");
store.connect("HOST", PORT, "DOMAIN\\USER\\SHAREDACCOUNT","pwd");

Here DOMAIN\\USER\\SHAREDACCOUNT would be like this
suppose email account is [email protected] then
abc\\tarun\\shared_MB

You also have to enter the password of [email protected] account.