251 Views 2 Replies Latest reply: Jul 17, 2006 10:06 AM by Mr. Sketch
This indicates the spammer is entering your email address and probably a number of others in the Bcc: field when addressing the message.
All email addresses placed in the Bcc: field do not appear and are invisible to all recipients. The only addresses that are visible to all recipients are those placed in the To: or Cc: fields.
Copied from How .Mac filters spam.
The .Mac mail servers filter spam, but some unwanted messages may still get through.
No single strategy is completely effective when it comes to managing Unsolicited Bulk Email (UBE), also known as "spam". People who are intent on sending spam are ingenious at coming up with ways around any filtration schemes.
In addition, see Why was I "spammed" at my .Mac Mail address? which applies to any email account and How HTML Email Messages Relate to Unsolicited Commercial Email ("spam") which applies to any email client such as the Mail.app.