Short answer
IMAP, in almost every case. IMAP leaves messages on the server and keeps every device in sync, so your phone and laptop show the same mailbox. POP3 downloads to one device and is only worth using if you deliberately want a local-only copy.
This is a general web-hosting explanation, not specific to Traxio.
Learn more
- IMAP vs POP3: which should I use?How IMAP and POP3 differ, why IMAP suits nearly everyone, and the rare cases where POP3 still makes sense.
- Email settings for any app (IMAP, POP3 and SMTP)The server names, ports and security settings for connecting any email app to your Traxio mailbox, with what to do if the app rejects them.