his is a question very often asked by webmasters and developers – this post help you understand, which method you should be using got sending emails and their impacts.
PHP Mail() Introduction
PHP mail() by far is the easiest way to send emails BUT this comes with a lot of security issues & weak controls – when you allow your website to send out emails through PHP mail function you don’t authenticate your email with password i.e. email is sent from blanket account tagging – needless to say, ISPs know this behavior and they can punish you by sending your emails to Junk instead of receiver’s inbox.
SMTP Authentication Introduction
SMTP authentication is the method where you authenticate your email credentials before it is sent out to the receiver. This may take an additional 5 minutes of your time compared to PHP Mail() to set up but you get the benefit of sending a real email that tells ISPs that the email they are receiving is coming from a real email account i.e. better chances of you delivering email to user Inbox and not Junk!
PHP Mail() vs SMTP Authentication
We outlined the primary difference above between the two methods, however, the below list helps you understand further details:
With years of experience in managing thousands of sites, we say that you should always use SMTP authentication for any emails you send out. The SMTP authentication method is secure, reliable and more than anything it improves your email delivery!