Copyright © 1999–2017 FastMail Pty Ltd
I got an email from someone I don't know. How is that possible?
There are several reasons you may have received an email from someone you don't know. Common ones include:
- Someone mistyped an email address, accidentally typing yours instead, when sending a message or signing up for a mailing list.
- Someone is sending out emails to common names at our system. This is usually done by spammers, trying to find new addresses to add to their mailing lists.
- Someone is sending out emails to other systems, but they're forging the email to appear as if it came from you. If the address they are trying to send to doesn't actually exist, you'll get a "delivery failure" email back, even though you never sent any email to that person. Again, this is often done by spammers to hide the original source of the message, and worse, to try and give us a bad name because most users think that the
Fromaddress on an email is accurate.
- Someone you know has a virus, such as the "klez" virus, which is sending out emails to everyone in their contact list.