Email

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). // ...

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

http://mail.live.com/mail/postmaster.aspx Hotmail postmaster web page

http://arstechnica.com/tech-policy/news/2011/02/anonymous-speaks-the-inside-story-of-the-hbgary-hack.ars/ awesome story about how security firm HBGary was hacked, or what happens if you do not follow simple security best practices.

http://atmail.com/kb/2008/setting-up-smtp-outbound-to-another-port-via-iptables-dnat/ if you are on EC2 hosting, redirect all your smpt traffic via SUBMISSION port

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://volokh.com/2010/03/15/eleventh-circuit-decision-largely-eliminates-fourth-amendment-protection-in-e-mail/ excellent article that covers recent 11th-circut decision about privacy protection of email communications and possible implications.

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://haacked.com/archive/2007/08/21/i-knew-how-to-validate-an-email-address-until-i.aspx notes about testing for valid email addr syntax