How to send email with php without the mail landing automaticly in the trash box

Im using PHP's mail() function to send some emails. But all my mails land automaticly in the trash box. Is there a way of preventing this? If so, where should i read to learn more about it.

Would you recommend me using PHPmailer?

Best of regards, Alexander

Solution

I suppose you mean thrash box at the receiver's end. So basically the receiving email server is regarding it as spam. This can happen if:

1) The IP you are sending from is already blacklisted for spamming (happens often in shared hosting)

2) The IP and domain are relatively new and unknown.

(Note that many times, newsletters from well established sites also end up in spam).

If its your dedicated IP, then setting RDNS for the IP, to match the domain name will very likely solve the issue. Another usual practice is to alert the receiver (if she is subscribing on your website) to check their thrash/spam folder and whitelist your email address in their mail account.

regards,