method
delete_all
delete_all( address, port = nil, account = nil, password = nil, isapop = false, &block )
public
Starts a POP3 session and deletes all messages on the server. If a block is given, each POPMail object is yielded to it before being deleted.
This method raises a POPAuthenticationError if authentication fails.
Example
Net::POP3.delete_all('pop.example.com', 110, 'YourAccount', 'YourPassword') do |m| file.write m.pop end