Where can I find a PHP Webmail engine with its own email database (like Outlook/TheBat/Thunderbird, only with web access)?

Question

PHP

Actually, the question has been raised.
I found many solutions that use IMAP, apparently it's so fashionable now. But I want to store emails from a number of mailboxes and different mail servers in one place. Plus, you need a setting, similar to Outlook, regarding the possibility of deleting letters from these mail servers after downloading.

Answer 1

roundcube