Hi everybody,
I run a mail server that handles mail for multiple domains. Somehow, a spammer is obtaining a list of valid mail accounts on my sendmail server and addressing his spam messages to only those accounts. Many of these accounts mail accounts have never been used by a person and are not posted around the internet anywhere, which leads me to believe there is a way for an outsider to query my mail server for a list of valid mail accounts.
Has anyone heard of this?
Thank you in advance!
Adam
I run a mail server that handles mail for multiple domains. Somehow, a spammer is obtaining a list of valid mail accounts on my sendmail server and addressing his spam messages to only those accounts. Many of these accounts mail accounts have never been used by a person and are not posted around the internet anywhere, which leads me to believe there is a way for an outsider to query my mail server for a list of valid mail accounts.
Has anyone heard of this?
Thank you in advance!
Adam