How to block a specific e-mail address?

[Zenbug]

My website has a mail form run by PHP, and I'm getting a lot of e-mails
sent through it that appear to contain my website's domain after the
'@', though I didn't send them. The e-mails contain no other content,
so I assume it's some kind of spam bot.

There must be a line of PHP that I can add that will basically say, "if
the e-mail address contains '@mydomainname. com', do not send."

I tried looking at php.net, but I can only find scripts that check if
the address is a valid one, which isn't good enough. I need to be able
to block a certain e-mail domain.

Thanks very much.
--ZenBug

[Oli Filth]

Re: How to block a specific e-mail address?

Zenbug said the following on 05/09/2005 19:45:[color=blue]
> My website has a mail form run by PHP, and I'm getting a lot of e-mails
> sent through it that appear to contain my website's domain after the
> '@', though I didn't send them. The e-mails contain no other content,
> so I assume it's some kind of spam bot.
>
> There must be a line of PHP that I can add that will basically say, "if
> the e-mail address contains '@mydomainname. com', do not send."
>[/color]

Regular expressions?

http://www.php.net/pcre

Or even a simple string search?

http://www.php.net/strpos

--
Oli

[Sandman]

Re: How to block a specific e-mail address?

In article <1125945945.517 674.260180@z14g 2000cwz.googleg roups.com>,
"Zenbug" <zenbug@gmail.c om> wrote:
[color=blue]
> My website has a mail form run by PHP, and I'm getting a lot of e-mails
> sent through it that appear to contain my website's domain after the
> '@', though I didn't send them. The e-mails contain no other content,
> so I assume it's some kind of spam bot.
>
> There must be a line of PHP that I can add that will basically say, "if
> the e-mail address contains '@mydomainname. com', do not send."
>
> I tried looking at php.net, but I can only find scripts that check if
> the address is a valid one, which isn't good enough. I need to be able
> to block a certain e-mail domain.[/color]


<?
if (!strstr($_POST["email"], "baddomain.com" )){
mail(...);
}
?>


--
Sandman[.net]

[Barry]

Re: How to block a specific e-mail address?

I would like to know what is causing this, as
it is happening to some of my site aswell.

Is there some new spambot out there?

Barry

Zenbug wrote:[color=blue]
> My website has a mail form run by PHP, and I'm getting a lot of e-mails
> sent through it that appear to contain my website's domain after the
> '@', though I didn't send them. The e-mails contain no other content,
> so I assume it's some kind of spam bot.
>
> There must be a line of PHP that I can add that will basically say, "if
> the e-mail address contains '@mydomainname. com', do not send."
>
> I tried looking at php.net, but I can only find scripts that check if
> the address is a valid one, which isn't good enough. I need to be able
> to block a certain e-mail domain.
>
> Thanks very much.
> --ZenBug
>[/color]

[Steve]

Re: How to block a specific e-mail address?

[color=blue]
> My website has a mail form run by PHP, and I'm getting a lot of e-mails
> sent through it that appear to contain my website's domain after the
> '@', though I didn't send them. The e-mails contain no other content,
> so I assume it's some kind of spam bot.[/color]

Just out of interest, can this form be submitted using a link? It may
be just a search engine bot clicking on everything to spider your site.
In that case, you can exclude the page with the form using robots.txt.

---
Steve

[Zenbug]

Re: How to block a specific e-mail address?

Thanks for the help, all.

Steve: In point of fact, yes, the code that sends the message is
contained in its own page, so if I load it up in a browser, a message
will be sent. I actually just added code that won't send the message
if the 'comments' field is left blank, so that should help if it's a
search engine spider.

Can you tell me how to use robots.txt though? That sounds like a good
idea anyway.

--ZenBug

[Steve]

Re: How to block a specific e-mail address?

[color=blue]
> Can you tell me how to use robots.txt though? That sounds like a good
> idea anyway.[/color]

See <http://www.searchengin eworld.com/robots/robots_tutorial .htm> and
<http://www.robotstxt.o rg/wc/robots.html> for details. Note that only
compliant robots would be excluded; spam harvesters and the like will
ignore the file.

---
Steve