Spam Resource: All Things Deliverability

RFC Ignorant (RFCI) is a blacklist. It lists sites that don't have working postmaster or abuse addresses, among a few other reasons. The name "RFC Ignorant" comes from the belief that not having these addresses working on your system means that you're out of s…

Cindy from NY writes: "Hello -- I am receiving abusive e-mails and am trying to track them through Sam Spade et.al. I think I know who is sending them and am trying to match IP addresses with old legitimate e-mails from the sender. Is this possible? I've spent many hou…

Bill from the UK writes: "I'm 66 and not a tech guy. I've just been kicked back as a "KNOWN SOURCE OF SPAM (NJABL)" although I don't generate spam. I do occasionally send large files to business associates, and some get kicked back because of size, bu…

Over here , I help answer a question about Challenge/Response filters, in MediaPost's EmailInsider newsletter. I was already a reader before the "E-mail Diva" reached out to me. It's worth signing up for.