3 ms·
I think by "invisible message" they mean it's invisible to the receiver because it's in their spam folder. I also thought this was a way to send a normal email
by jacobrussell 5y ago
I think by "invisible message" they mean it's invisible to the receiver because it's in their spam folder. I also thought this was a way to send a normal email to the spam folder, but looks like it is assuming the spam filter removes the email based on content. I wonder if there is a way to use this method with a tracker pixel, so that it gets filtered out because of the content, but the reader can't see it.
edit: I tried it in gmail and it was invisible.
- ______-_-______ 5y agoHere's an idea: Send a multipart email. Include the spam keywords in the text/plain part, and your ordinary message in the text/html part. Almost all email clients these days will ignore the text/plain part, so they'll only see the text/html and there won't be any suspicious 1pt white text. As long as they don't view the raw message, you should be in the clear. Or even better, use base64 transfer encoding for the spam keywords. Spam filters HATE base64.
- nunez 5y agoThe text/plain part would show up as an attachment in some clients, like Spark
- zinekeller 5y agoLet's be honest, if you're trying this to someone that competent in mail, you're already screwed up before hitting send.
- mdasen 5y agoYes, you could do that, but it might be harder. Do you know of domains that are block-listed? If your email has links to malicious websites, they'll aggressively filter them. However, it might just be blocked entirely rather than ending up in SPAM. That's always a risk if you'er trying to hit the SPAM folder - if you make it too bad, they might simply reject it.