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So your system automatically sends back messages to the non-whitelisted addresses. Those messages will eventually be classified as spam by big operators such as
by kardos 8y ago
So your system automatically sends back messages to the non-whitelisted addresses. Those messages will eventually be classified as spam by big operators such as gmail. How do you prevent that from reducing your "email reputation" and ending up on spam email blacklists?
- BeetleB 8y agoTo be frank, this is a concern to me, and I think I'm already on some spam lists. Recently two folks using Gmail told me my (regular, written by me) email showed up in their Junk folder. I checked others who use Gmail and it showed up fine for them. I may end up using a separate domain for those emails. I'm pretty sure that's a weak solution.
- kardos 8y agoHmmmmm, the spam list downside is a non starter for me. It sounds like you've invented a captcha for email. If that ever took off and became widely used, it would be rather easy for the spammers to write a script to comply with the scheme. Followed of course by the usual escalation to adding an image-based captcha, and then efforts to beat the captcha, and so on. As an aside, you could do it entirely in email as well by sending a response that requires a specific reply to join the whitelist. That is you could eliminate the webserver and the mildly-questionable-looking URL.