Problem of checking email validity

[rei27]

Hey all,

I am facing a problem for my website. My website is a ecommerce website, it will generate some auto email to user. For example, when a user successful register, a email will send to him.

The problem is, some of my user give the wrong email. It causes my email function terminated by my hosting company(server side). Because they suspect my side keep send the spam.

We found out the problem is caused by the invalid email address, so is it any coding to check the email validity before i send out?

[NogDog]

If you need to check that the email format is valid, the most comprehensive function I've seen is: http://www.iamcal.com/publish/articles/php/parsing_email/.