PHP Sending Automated Mail That Doesn't Goto The SPAM Folder?

I've always been a little troubled when it comes to sending mail through PHP functions. But it hasn't really been a problem until my latest proje开发者_Go百科ct.

I'm looking for the absolute best way of sending mail through PHP and not having it end up in the SPAM folder :/

I'm aware that it won't probably work 100% of the time, I'm just looking for the best option.

Thanks :)

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The number one reason mail usually ends up in the SPAM folder (when the content isn't actually spammy) is that the From: header isn't set or is set to a non-existant email address. If the header is empty the message will appear to come from something like webmaster@localdomain.

In the mail() call (refer to the docs) be sure to populate the $additional_headers field like:

mail('to@example.com', 'Subject', 'Body text...', 
             'From: me@realaddress.com');

That should get you past almost all spam filters -- assuming you're not actually sending out spammy content! :)

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Use a libary like PHPMailer and make sure to fill out all email header fields correctly.

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For anyone searching, try reading codinghorror's summary on making sure, in the most possible way, that emails are not flagged as spam.

http://www.codinghorror.com/blog/2010/04/so-youd-like-to-send-some-email-through-code.html