Re: Form spam? What to do?

Chris Hope wrote:

> chlori wrote:
>
>> Good morning
>>
>> Some of my customers are complaining that someone/something
>> is spamming the contact forms on their sites in the last weeks.
>>
>> In the E-Mail field there is a random e-mail address with
>> the domainname of the site. So it's difficult to use a junk
>> filter on the mailserver, isn't it?
>>
>> In the comments field, the same e-mail address is repeated.
>> Nothing else. It's not always the same address.
>>
>> These mails come at any day or night time, so if it's the
>> same person, he doesn't sleep much...
>>
>> My questions:
>> What's happening? Is that a person? Software? Why are they
>> doing that? Doesn't seem to help anyone...
>>
>> What's the best way to stop getting those mails without
>> making it a too big fight filling in the form?
>>
>> Thanks for your ideas!
>
> I've been getting this a bit on some of the sites I manage. They
> appear to be fishing for forms they can send spam through by sending a
> bunch of headers which would go into the email and create a different
> email addressed to a different person.
>
> The way I've been combating this is to check none of the single line
> fields (eg first name, last name etc) contain newline characters, and
> none of the multi line fields (eg message) contain 'Content-Type:',
> 'multipart/mixed' or 'boundary='. If any of them match the above then
> they get a message back saying the form contained invalid data.

Hmm. Having re-read your post your and my problem seem to be different.
Oh well :)

--
Chris Hope | www.electrictoolbox.com | www.linuxcdmall.com
.

Relevant Pages

  • Re: Form spam? What to do?
    ... > Some of my customers are complaining that someone/something ... > is spamming the contact forms on their sites in the last weeks. ... > These mails come at any day or night time, ... they get a message back saying the form contained invalid data. ...
    (alt.html)
  • Form spam? What to do?
    ... Some of my customers are complaining that someone/something is spamming the contact forms on their sites in the last weeks. ... In the E-Mail field there is a random e-mail address with the domainname of the site. ... These mails come at any day or night time, so if it's the same person, he doesn't sleep much... ...
    (alt.html)
  • Re: Problem with Mail Bouncing. Using Static IP for Outgoing Mails.
    ... Many servers block email from China, Russia and other spamming ... Spamhaus will list you if you are doing bad things. ... the Exchange server to receive mails from my mail hosting server. ...
    (microsoft.public.windows.server.sbs)
  • Re: OT: how do I report spam from Banging Tunes.com?
    ... One of my mates when he gets spam mails and they won't stop sending ... products but since you insist on spamming me about them I thought I'd ... intention of buying anything but please send me as much information as ... Christian charities because her family were all athiests blah blah... ...
    (uk.music.guitar)
  • Re: Outlook2003 and Winmail.dat horror
    ... > Now the customer reports a weird problem. ... > Several receipients are complaining that they receive mails (sended ...
    (microsoft.public.outlook)