What follows is a non-weighted list of things we check, some hourly, some daily, some quarterly, some on an ad hoc basis. Other stuff we check is confidential, but we check a LOT more than this, sometimes regularly, sometimes when our attention is drawn to a given issue.
SENDING ENTITY Disclosure Privacy Consent Header clarity (From:/Friendly From:) WHOIS transparency NS (recursive? Snowshoe?) PERFORMANCE Windows Live Sender Reputation Data Hotmail Complaints Yahoo Complaints Anonymous ISP Complaints Spamcop Complaints Spamtrap hits DNSBL presence INFRASTRUCTURE 550s Unsubscribe Functionality FQ rDNS SPF DKIM RFC Role account functionality CBL PBL XBL DROP FBL Sign-up Volume Sufficiency -- Neil Schwartzman Director, Accreditation Security & Standards Certified | Safelist Return Path Inc. 0142002038
