How to retrieve only unread emails with ruby mail gem?

Question

I am trying to retrieve emails with ruby mail gem, in the examples it says that Mail.last will retrieve the last unread email https://github.com/mikel/mail#getting-emails-from-a-pop-server but it returns just the last email no matter whether it has been read before or not. Does anybody know how to get only unread emails?

Answer 1

This question was answered in Need help on reading emails with "mail" gem in ruby

However the answer was not accepted - don´t know why. Also the question did not mention "unread email" nor the [mail-gem] tag so it was not obvious to search.

The answer points to the solution on the ruby-gem issues report https://github.com/mikel/mail/issues/258