One of my e-mail accounts is POP3 only. This means that having it set up on multiple computers might get confusing. So I deleted it from SeaMonkey on my desktop (Windows Vista) before creating it in Thunderbird on my laptop (Ubuntu 13.10).
However, I can’t create it in Thunderbird. I must have some of the details wrong. I’m pretty confident I’ve got the password right, so something else must be wrong. The e-mail data from SeaMonkey still exists*, however, that seems to contain only the actual e-mails. As far as I can tell, the login data has disappeared. Would it exist anywhere in recoverable format? (I guess the name of the actual mailserver can be inferred from the name of the folder.)
* I backed up the folder
SeaMonkey/Profiles/vh64vf7c.default/Mail/mail.iolfree.ie before I deleted the account; in fact that was unnecessary, as it’s still there even after deletion.