Hacker News new | comments | show | ask | jobs | submit login

Is it reasonable to flag (and send a complaint to the ISP) anything without an obvious "unsubscribe" link as spam?

No. Spammers include unsubscribe links, too; they just don't obey them.

Even worse than not obey them, they've been known to treat them as confirmation that their spam is being read, and send more spam in response. Or sell the email address to other spammers as a confirmed-good address. It used to actually cost money to spam (but nowhere near as much as it cost the recipients).

Not sure how much this still happens, with spam being so much cheaper to send with botnets.

Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | DMCA | Apply to YC | Contact