How do cold-email tools need to adapt to EU and US rules?

Quoted on this wiki

Every place a page here uses this source, in the order the words come in it.

1. US rules (CAN-SPAM + FTC Act) “CAN-SPAM does not require prior consent for commercial email.” Your tool also needs to honor opt-outs within 10 business days and suppress that contact from future sends. A tool that doesn't maintain a live suppression list will get you in trouble fast.

   In CAN-SPAM and CASL

Quotes are verbatim and belong to their publishers. Where a quote has been translated, the original wording is kept below it.