How to $mailbox->getMessages() higher than UID x?

[benediktcarda]

The industry standard of an IMAP client checking mail is to:
-> save the uidvalidity of a mailbox
-> save the highest UID fetched from this mailbox

Then, next time you fetch emails, check whether uidvalidity is unchanged and if yes, request to get all messages with a higher UID than what you saved as the highest UID you already have. (If uidvalidity changed fetch all messages again.) This makes sure you will not miss out on messages.

Anyway, I can't find a way how I can do a $mailbox->getMessages() with UID as search criteria.
Can somebody help me?

[benediktcarda]

Ok, I found out, that there is a seperate function to perform search by UID:
$mailbox->getMessageSequence('13900:*');

It would be good to add this to the README.MD as this is probably a very common use case.