Anti-spam techniques | Wikipedia audio article
Channel: wikipedia tts
Date: 14/01/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Anti-spam_techniques


00:00:43 1 End-user techniques
00:01:03 1.1 Discretion
00:01:38 1.2 Address munging
00:02:25 1.3 Avoid responding to spam
00:03:07 1.4 Contact forms
00:03:50 1.5 Disable HTML in email
00:04:41 1.6 Disposable email addresses
00:05:33 1.7 Ham passwords
00:06:20 1.8 Reporting spam
00:07:20 2 Automated techniques for email administrators
00:08:02 2.1 Authentication
00:08:45 2.2 Challenge/response systems
00:09:13 2.3 Checksum-based filtering
00:10:09 2.4 Country-based filtering
00:10:40 2.5 DNS-based blacklists
00:11:18 2.6 URL filtering
00:11:48 2.7 Strict enforcement of RFC standards
00:15:47 2.8 Honeypots
00:16:33 2.9 Hybrid filtering
00:17:10 2.10 Outbound spam protection
00:18:02 2.11 PTR/reverse DNS checks
00:19:43 2.12 Rule-based filtering
00:20:44 2.13 SMTP callback verification
00:22:01 2.14 SMTP proxy
00:22:24 2.15 Spamtrapping
00:23:18 2.16 Statistical content filtering
00:24:19 2.17 Tarpits
00:25:00 3 Automated techniques for email senders
00:25:30 3.1 Background checks on new users and customers
00:26:18 3.2 Confirmed opt-in for mailing lists
00:27:12 3.3 Egress spam filtering
00:27:40 3.4 Limit email backscatter
00:28:31 3.5 Port 25 blocking
00:29:15 3.6 Port 25 interception
00:29:52 3.7 Rate limiting
00:30:20 3.8 Spam report feedback loops
00:30:50 3.9 FROM field control
00:31:44 3.10 Strong AUP and TOS agreements
00:32:11 4 Legal measures
00:33:10 5 New solutions and ongoing research
00:33:26 5.1 Cost-based systems
00:33:58 5.2 Other techniques
00:34:23 5.3 Research conferences



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SUMMARY
=======
Various anti-spam techniques are used to prevent email spam (unsolicited bulk email).
No technique is a complete solution to the spam problem, and each has trade-offs between incorrectly rejecting legitimate email (false positives) as opposed to not rejecting all spam (false negatives) – and the associated costs in time, effort, and cost of wrongfully obstructing good mail.
Anti-spam techniques can be broken into four broad categories: those that require actions by individuals, those that can be automated by email administrators, those that can be automated by email senders and those employed by researchers and law enforcement officials.