Ask Slashdot: What To Do With Misdirected Email?
An anonymous reader writes "My Gmail account is of the form (first initial).(middle initial).(common last name)@gmail.com. I routinely receive emails clearly intended for someone else. These range from newsletters to personal and business emails. I've received email with various people's addresses, phone numbers and even financial information. A few years ago I started saving the more interesting ones, and now have an archive of hundreds of emails directed at no less than eight distinct individuals. I used to try replying to the personal ones with a form response, but it didn't seem to help. To make matters worse, I frequently find I can't use my email to create a new account at various sites because it's already been registered. Does anyone else have this problem? Is there any good way to handle this?"
In that case, use an e-mail based password reset, set a new password, and done, as far as having registered for the site, or contact the site's support.
This is bad advice. Do not interact with an unknown account opened with your email address.
A successful login from your IP address may be construed as assuming ownership of the account. They might try to collect money from you. Or, the account may have been used for illegal activities which are now linked to your IP address.
Never assume ownership of an unknown account. All communications (if any) with the account management should clearly state that you are not the account holder and are not responsible for the account. In particular, do not ask for the account to be closed. Asking the company to take action on the account may also be construed as assuming ownership of the account.
At best you can send an email stating you are not the account holder. Then put them on your block list. Do not get more involved than that.