Spam

https://moderncrypto.org/mail-archive/messaging/2014/000780.html - how does antispam currently work at large email providers - how would widespread E2E crypto affect this - what are the options for moving things to the client (and pros, cons) - is this feasible for email? - How do things change when moving from email to other sorts of async messaging (e.g. text messaging) or new protocols - i.e. are there unique aspects of existing email protocols, or are these general problems? // I worked at Google for about 7.5 years. For about 4.5 of those I worked on the Gmail abuse team, which is very tightly linked with the spam team (they use the same software, share the same on-call rotations etc). // ...

https://www.senderscore.org/senderscore/ sendnder-score IP lookup tool

http://multirbl.valli.org/lookup/ search multiple DNSNL

http://sendmail.com/sm/resources/tools/ip_reputation/ IP-reputation tools from Sendmail.com (spam-score of an IP address )

http://www.codinghorror.com/blog/2010/04/so-youd-like-to-send-some-email-through-code.html#comments post by Jeff Atwood about troubles involved in setting up your own mail server (i.e. in case you actually care that mail you send will actually reach the recipient). While I don’t agree with the post, post and comments (especially comments) do contains good info and suggestions on what it takes to maintain a good email server. /PS: in Jeff’s case, his code is just an email client, all the stuff he writes about is sysadmin’s job and has nothing to do with programming/ ...

http://forum.ixbt.com/topic.cgi?id=76:9253 dnl # prohibit creation of MSA daemons with default settings

http://www.mxtoolbox.com/blacklists.aspx website that does blacklist lookups.

http://www.nabble.com/learning-from-IMAP-spam-collection-td23580921.html useful notes and links to various scripts that allow spamassasin bayes learning from IMAP folder rather than from local/network directory.

http://www.cs.auckland.ac.nz/~pgut001/pubs/malware_biz.pdf awesome paper about business of spam/malware/etc, kinda scary

http://www.brandonhutchinson.com/Creating_a_new_sendmail_mailer.html defining new sendmail ‘mailer’ with custom limits to create per-domain limit policy