- Spammers often use a real address as the "from" address when they send out mail.
- They may send to millions of addresses, and any bounced messages then get sent to you (these bounced emails you get are called backscatter).
- While it is annoying, it does not mean your account has been hacked.
- For details about how to block backscatter, visit the Answers article on backscatter.
Details
Spammers often use a real address from their list as the
"from" address when they send out mail. The “from” address looks like
a "real" address (because it is), and if the recipient recognizes
that address, he or she is more likely to read the spam. Another perk for the
spammer is that using random addresses as the "from" address keeps
people from just blocking all mail from the spammer's real address (because
they never see it), and it cuts down on the hate mail that the spammer
receives.
When a spammer sends a message to millions of addresses,
hundreds of the addresses will not work because they no longer exist or the
mailbox is full. So, hundreds of "Non Delivery Reports" (NDRs or
"bounces") will be sent to whoever's address was used on the spam
messages "from" line. These bounces are called
"backscatter".
Getting backscatter doesn't mean that your account has been
hacked. When sending email, you can actually set any "from" address. For
example, when you send mail from your home machine you say that it's
"from" you@yourdomain.com, but the mail didn't originate at your
email. So, the spammer can send mail from anywhere in the world and say that
it's "from" your email address.
Unfortunately, spammers tend to send out a few million messages "from" one address, and then go onto another "from" address. So, people often receive a few hundred of these bounce messages all at once, and then everything goes back to normal until next time. Once a spammer gets your email address, it's impossible to prevent your email address from being used in this way.
Unfortunately, spammers tend to send out a few million messages "from" one address, and then go onto another "from" address. So, people often receive a few hundred of these bounce messages all at once, and then everything goes back to normal until next time. Once a spammer gets your email address, it's impossible to prevent your email address from being used in this way.
For details about how to block backscatter, visit the
Answers article on backscatter.
