Looks like some particularly inept spammer is grabbing partial
Message-IDs from the headers of messages on this list and trying to send
email to them as though they were email addresses. Sad, really.
Kevin Peuhkurinen wrote:
I've noticed recently in my MTA logs a growing trend of attempts to
send email to numbered email addresses, such as:
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
Anyone have any ideas why spammers would be trying this particular
tactic?