There isare so many potential things that could be happening here. The attackattacker may try phishing by having you clicking anclick a malicious link which would be related tocontaining malware such as keyloggerkeyloggers or so onsimilar. The attackattacker could also try social engineering so gatheringto gather all information he/she can about you thenbefore attempting to get into your account. Keep in mind the most e-mail servers will include the originating IP when sending e-mail so they could get your IP and attempt to hack into your computer. The spammer maybemay be just gathering active e-mail to send spam later down the line.
Minor grammar and conventions edit.