How to find only “new” messages when using PHP's IMAP functions for a POP3 mailbox?
I'm using PHP's IMAP functions to retrieve messages from a POP3 mailbox & was wondering is there any way to tell the new messages apart from the old ones? Unfortunately I cannot just delete the ones that are retrieved as they need to stay on the mail server, so I'm now wondering that each subsequent time I connect, how can I just retrieve the new ones OR be able to tell the new ones apart from the old ones I have already retrieved previously? I know that each message has a UID attached to it & I could use this.. however I've read that this can change if the messages are deleted; as the