I am forwarding all spam messages to the FRAUD HELP DESK for analyzing. They prefer the .eml format. In Thunderbird (version 60*) when I rightclick a (spam)message a menu opens. I select Forward As and then Attachment. (I am using the Dutch version of Thunderbird, so the translation can perhaps differ). Then a new e-mail window opens with the attached message to be forwarded. Finally I then specify the To: address and press Submit. In this way the Message View Pane (the text pane below the Messages Pane) does not open. If I attach the second (spam)message then I have to select the (second) message by leftclicking and drag it to the Attachement Pane of the e-mail window. But now the (second) message is opened in the Message View Pane. I do not want this because the message may perhaps have an invisible 1x1 pixeltracker, so now the sender knows that my e-mail address exists ! Or is this not 100% true? Of course I do not click on the link in that message. And sometimes the message has no link, but only a serie of characters like <3;Abu5Cdy9mZsVGdAFWa2FmbpRmbhN2cB;2505;uVWbuM2bql3d65CdodWdvJ3d5xGanlGaC> I ask this because each day I am receiving a lot of spam mails and it seems that the number is growing every week. I like to forward them all within one e-mail. So is it 100% safe if I do it on the way described above? Or is there another way to forward a bunch of (spam)messages without any chance to be detected by the (spam)sender? Thank you for your help.