Does not work when a folder name contains umlauts: Entwürfe

[freescout-helpdesk]

Previous version of this library (laravel-imap) was throwing "Mailbox name is not valid mUTF-7" error.
Current php-imap library simply returns an empty folder:

$folder = $client->getFolderByPath('INBOX.Entwürfe');

In our fork of laravel-imap we've fixed it using imap_utf8_to_mutf7() function:
freescout-help-desk/freescout#2793 (comment)

[Webklex]

Hi @freescout-helpdesk ,
many thanks for reporting it here. I was able to reproduce the issue.

However I don't have a solution for php 8.0. I'll have to dig a little deeper. I'm currently stuck here: php/php-src#10192

Best regards,

[Webklex]

Fixed as of v5.1. Thanks @freescout-helpdesk for the report.