olemus
tarkvarakomponent või -funktsioon spämmi kõrvaldamiseks sõnumitest
= a software routine that deletes incoming spam or diverts it to a "junk" mailbox

ülevaateid
https://en.wikipedia.org/wiki/Email_filtering

https://halon.io/blog/history-of-anti-spam-and-spam-filters

https://emarsys.com/learn/blog/a-brief-history-of-spam-filtering-and-deliverability-gunter-haselberger/

https://www.ltnow.com/email-spam-filters-work/

https://cs.stanford.edu/computing-guide/email/spam-filtering

https://blog.malwarebytes.com/security-world/2017/02/explained-bayesian-spam-filtering/

http://file.scirp.org/pdf/CN20110300008_88695973.pdf

näiteid
http://www.comparedandreviewed.com/anti-spam-software

https://www.sherwoodhosting.com/email-ftp-support/spam-filter-challenge-response-comparison-chart.php

vt ka
- Bayes'i filter
- spämmitõrje