Care as much as you can. Spamming is going a very big issue. I also have many many e-mails in my spam box but i don't consider messages from unknown sender.
Thanks for the warning... This gives me a hint what email to reply to... Although I have not received the exact email but I do have received some spam messages which I neglect reading and automatically deleted... Hope this warning may give others a "Wake Up" call!
No service provider should ever ask you for a username/password in an e-mail, so if you see this, it's a red flag right away. Also good to check the links in emails and make sure they are coming from proper domains, to avoid falling for a phishing e-mail.
Just avoid all the mails like this. Now a days I am receiving 2/3 mails daily. some tells your id owned 100000000 pound and like this. some one tell you are select for Microsoft. some tells I am a very rich person of Africa (and so on) and due some political problem all my money will taken by Government, so I want to transfer my money to you. I am bored about these mail. So such mail don't open. just delete. Regards Noor Alam