I hope this question wont be too specific. But I really need to ask. We all know that we cannot fully prevent our emails to go to spam box right? But I guess we can decrease the #of emails that goes there.
Till now, I use PHP's built-in function mail() but I guess there are other methods right? What are they and what is your best practice for this problem?
Taken from: What is the best practice to send emails from PHP script? That's over a year old, hence the new question.