Spam Resource: All Things Deliverability

Slovakia-based communications provider Slovak Telekom, a 100% owned subsidiary of Deutsche Telekom, has terminated all email services effective December 31, 2020. Mailkit's Jakub Olexa explains: "The affected domains are @stonline.sk, @mail.t-com.sk, @t-zones.sk, @po…

Anti-spam blocking list group Spamhaus is warning that come March 2021, they will begin implementation of new error codes (DNSBL lookup responses) that they may provide in response to certain queries run against the Spamhaus blocking lists. Those new codes are meant to alert yo…

Stolen from JWZ :

Open Tracking is evil and you should be ashamed! So says the BBC -- or rather, so says Hey.com , who was asked to explain it all to BBC News. Hey.com might have a bit of a bias, there, don't you think? Another point of view might be that ISPs take user engagement into acco…

ZDNet's Catalin Cimpanu provides an overview of how internet security company  Proofpoint is suing Facebook , looking to stop Facebook from using UDRP (Uniform Domain-Name Dispute-Resolution) requests to wrest away certain Proofpoint-owned domain names being used for phishi…

I am reliably informed that the SMTP Field Manual published by Postmark ( first mentioned here ) has been comprehensively updated, with lots of new information, including provider/receiver descriptions, postmaster links and resources, troubleshooting steps, insight for individ…

ZDNet's Danny Palmer breaks down the data compiled and analyzed by Google and Stanford University in a new research paper. It turns out, if your data was exposed in a breach, you're more likely to be targeted with phish or malware. Perhaps a bit obvious, but there's…

Here's what I think you should do if you've received unwanted spam in your inbox. Most importantly, you should click the "report spam" button offered by Gmail, Outlook.com, Yahoo Mail, etc. to train the ISP that the sender's domain and IP address are being…

This Wired article talks about the different ways you can back up your important emails, but their recommendations make me wonder. I don't necessarily want all my emails forwarded to another mailbox hosted somewhere else. What if that somewhere else isn't as secure? Cou…

The Cisco-owned Spamcop.net  spam reporting and blocking list service ran into a bit of trouble this weekend as their "spamcop.net" domain name was allowed to expire. The domain's DNS records reverted to some default "parking" setting by (I think) their…