- Yes - your email password is the password used to activate the email server account. You would change it with the server company that provides the email service.
- It is actually quite easy for anyone to create a random email address, but use your name as the account name. See the example below:
Suppose that you have an email account with these details:
- Name: Howard Thatcher
- Email: hthatcher1@server.com
Now, suppose that someone else (an imposter) also creates an email account with these details:
- Name: Howard Thatcher
- Email: myfakeaddress@differentserver.com
If the imposter sends an email using their new account, most mail clients will show the name of the sender account, instead of the email address. This can make it appear as if you sent an email that was actually sent from an imposter's account.
In this scenario, your email account is perfectly safe, but the imposter has impersonated you using their account. If your contacts check the email address in the From field though, they can easily see that the email was sent from an imposter's account, and not your account.
NOTE: There are ways to make it look like you sent an email, even though you didn't. This can be done by carefully modifying the hidden email header information. With these kinds of emails, any replies to the original email sent will actually be directed towards the scammer or imposter. Examining the headers, though, should reveal the true sender.
Overall TL;DR: Use good email account security (good password + MFA) and trust your gut. If something doesn't seem right, it probably isn't. Contact the supposed sender using a trusted alternate means of communication (e.g. iMessage or texting, phone call, etc) and double-check that they actually sent the email in question.