Can I also use POP3
Accessing email via POP3
Yes, even though for simplicity we often refer only to IMAP or the IMAP server, you can alternatively retrieve your mail using the POP3 protocol. The hostname (incoming mail server) is:
pop3.mailbox.org
The connection is, of course, secured with SSL/TLS. In most cases, modern mail programs will automatically detect this and apply the correct configuration.
Characteristics of POP3
The POP3 protocol is an older, simplified retrieval protocol that can only download mail from the inbox. The concept of mail folders is not supported by POP3 – this functionality is only available with IMAP.
Important note
Other mail folders from mailbox Office – apart from the inbox – are not retrieved or synchronized with POP3!
If you want to work with folders or keep your mail synchronized across multiple devices, we strongly recommend using IMAP.