Q: I'm having e-mail problems. Several times a day I get "mail delivery failure" notices for e-mails that I never sent. I've also been getting e-mails in foreign languages that I can't read. Some of these e-mails don't contain any message, or the attachments don't make any sense.
Is someone using my e-mail address to send messages to other people? What should I do?
Steven Russell, Galloway, Ohio
A: It's possible that someone has gained access to your e-mail account and is sending messages in your name. But it's more likely that these are bogus e-mails from disreputable sources. Even the "mail delivery failure" e-mails are probably fake.
There are three things you should do immediately: Change your e-mail password to lock out anyone who might be using the account. Stop opening suspicious e-mails and attachments. Run the free version of the Malwarebytes program (tinyurl.com/jsdacdk) in case the e-mails have installed any malicious software on your computer.
If anyone is using your e-mail account, the goal would be to send junk or malicious e-mails to others using your name. The best defense against that is to create a strong new e-mail password that would be hard for anyone else to guess (see examples at tinyurl.com/y9sr6y97 and tinyurl.com/ybuojnby).
It's common for unscrupulous people to send fake e-mails that are designed to attract attention. The senders hope that curiosity will prompt you to open an e-mail or an attachment, or to respond because you think it was sent to you by mistake.
Either response notifies the sender that your e-mail address is valid, and thus a good place to send more malicious e-mails. In addition, opening these messages makes your computer vulnerable to infection by any malware that the e-mail may carry. (For tips on how to recognize fake e-mail and other online scams, see tinyurl.com/ha6gvmt and tinyurl.com/yahgb5fd).