Blocking form spam
This WebDNA talk-list message is from 2006
It keeps the original formatting.
numero = 67907
interpreted = N
texte = Hi,=20A couple of my sites are starting to get hit by bots that are sendingspam through contact and sign-up forms. I can't use CAPTCHAS on some ofthese forms and was wondering what techniques others are using to tryand block this stuff.=20Also on some forms the spammers are adding email headers hoping to pushemail through if any of the form fields are passed on to sendmail. Ihave read that the way to block this is to strip linefeed and carraigereturn characters out of the fields. The best that I have come up withis:-=20[table name=3Dremovelinefeeds&fields=3Dfrom,to]%0A=20%0D=20[/table]=20[text]_cleanname=3D[convertwordstable=3Dremovelinefeeds][_name][/convertwords][/text]=20Does anyone have a neater way to strip these characters ?=20=20Thanks- Tom-------------------------------------------------------------This message is sent to you because you are subscribed to the mailing list
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Associated Messages, from the most recent to the oldest:
Hi,=20A couple of my sites are starting to get hit by bots that are sendingspam through contact and sign-up forms. I can't use CAPTCHAS on some ofthese forms and was wondering what techniques others are using to tryand block this stuff.=20Also on some forms the spammers are adding email headers hoping to pushemail through if any of the form fields are passed on to sendmail. Ihave read that the way to block this is to strip linefeed and carraigereturn characters out of the fields. The best that I have come up withis:-=20[table name=3Dremovelinefeeds&fields=3Dfrom,to]%0A=20%0D=20[/table]=20[text]_cleanname=3D[convertwordstable=3Dremovelinefeeds][_name][/convertwords][/text]=20Does anyone have a neater way to strip these characters ?=20=20Thanks- Tom-------------------------------------------------------------This message is sent to you because you are subscribed to the mailing list .To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
"Tom Duke"
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