MY SMTP Mail Keeps Coming Through As Junk

I know this is plastered all over the net... But i've tried a lot of solutions and it just wont seem to work. My SMTP mail first came through as junk, and now just comes into my in

Solution 1:

Most of E-Mail providers check every received email to decide whether it's a spam or not. For example , if you send an email as myemail@hotmail.com from mail.optusnet.com.au , it will not pass the test and will be put under junk category. In my experience, Yahoo! and Hotmail usually put every email with X-Mailer: PHP header as junk!

For more information take a look at Sender Policy Framework.

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About comment: If you take a look at your received email, you will see something like this:

Received-SPF: neutral (google.com: x.x.x.x is neither permitted nor denied by best guess record for domain of email@mail.optusnet.com.au) client-ip=x.x.x.x;

it tells client that this email at least is NOT trying to show itself as someone else, so it goes to your inbox. but If you use something@hotmail.com, since hotmail.com has a valid IP and it's different from mail.optusnet.com.au, so it goes to your junk folder.