Check a list of domains for email blacklist listings (Spamhaus DBL, URIBL, SURBL + IP-based ZEN/SpamCop/Barracuda) and missing email-auth DNS records (SPF, DKIM, DMARC). Use when the user pastes a list of domains — bare, one-per-line, comma-separated, or a CSV column — with no other instruction, or
Check a list of domains for email blacklist listings (Spamhaus DBL, URIBL, SURBL + IP-based ZEN/SpamCop/Barracuda) and missing email-auth DNS records (SPF, DKIM, DMARC). Use when the user pastes a list of domains — bare, one-per-line, comma-separated, or a CSV column — with no other instruction, or asks to check domains for blacklisting, blocklists, missing records, SPF/DKIM/DMARC, or email delive