Proxy for Gmail

Hi,

from our internal company network we don’t get a connection to Gmail. But from an external network.

/**
 * Establish a connection to the google imap server
 */
private Store connect() throws MessagingException {
	Properties props = new Properties();
	props.setProperty("mail.store.protocol", "imaps");
	Session session = Session.getDefaultInstance(props, null);
	Store store;

	try{
		store = session.getStore("imaps");
		store.connect('imap.gmail.com', this.emailAddress, this.emailPassword);
	} catch (NoSuchProviderException e) {
		e.printStackTrace();
		throw e;
	} catch (MessagingException e) {
		e.printStackTrace();
		throw e;
	} catch (AuthenticationFailedException e) {
		e.printStackTrace();
		throw e;
	}

	return store;
}

A connection to another interface is running with our proxy. So settings and credentials are correct and proxy is working.

Does anybody have an idea what’s wrong?

Regards