How to avoid my mails sent from PHP mail() being marked as spam?

Question

I\'m using the following to send registration e-mails:

$subject = \'subject is here\';
$message_raw = \'e-mail text\';

$message = base64_encode($message_raw         


        

Answer 1

you may need a reverse dns record for your server.

many mail servers considers that mails sent from a host are spam if the hostname cannot be looked up. that is nslookup papa.sk should return an ip address, and nslookup should return papa.sk.