RE: [PHP] Email security
> -Original Message- > From: Tiji varghese [mailto:tij...@yahoo.co.in] > Sent: Tuesday, July 14, 2009 7:47 AM > To: PHP General > Subject: [PHP] Email security > > Hello, > > I've implemented a contact form on my website that would email me the > contents of the form and also add it to the database. Its working > perfectly but I'm not too sure about the security part. I don't know > much about the security issues concerned with email forms and the > measures to check it. Please help. > > Thanks, > Tiji [Dewey Williams] There are a number of easy to use sanitizing scripts available for processing forms for email and database use - find and use one! Forms are notoriously easy to compromise for sending spam and corrupting web sites. A program I have used in the past is FormMail by http://www.tectite.com. There are many other FormMail programs available by the same name - this one is well documented and easy to set up. It doesn't provide as much database security as you may want, but it does a good job of hiding email and preventing cross-site scripting attacks. Dewey Williams -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Email security
On Tue, Jul 14, 2009 at 7:46 AM, Tiji varghese wrote: > Hello, > > I've implemented a contact form on my website that would email me the > contents of the form and also add it to the database. Its working perfectly > but I'm not too sure about the security part. I don't know much about the > security issues concerned with email forms and the measures to check it. > Please help. > > Thanks, > Tiji > > > > See the Web's breaking stories, chosen by people like you. Check out > Yahoo! Buzz. http://in.buzz.yahoo.com/ The main thing to be aware of would be 'email header injection.' Do not allow returns/newlines in any of the mail header fields you populate from user input. Also require a valid email address and verify that it has a valid domain name. Next up would just be the annoyance of a client receiving tons of spam messages. There are a lot of automated programs crawling the web just filling out every form it finds looking for vulns to exploit. Even if your form has no holes in it, the client will still get all of this unwanted junk from the automated tests. You can try to come up with some clever ways of stopping that. -- http://www.ericbutera.us/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Email security
Hello, I've implemented a contact form on my website that would email me the contents of the form and also add it to the database. Its working perfectly but I'm not too sure about the security part. I don't know much about the security issues concerned with email forms and the measures to check it. Please help. Thanks, Tiji See the Web's breaking stories, chosen by people like you. Check out Yahoo! Buzz. http://in.buzz.yahoo.com/
