Why is email not being received if it appears to be successfully sent?

Question

I cant understand why I'm not receiving email from this function ... as you can see the smtp transcript is successful

I switched to using 10minutemail.com to receive email to make sure it wasnt being blocked by a blacklist or something.

I also have been successful in sending plain text using a script in the same directory to the same recipient and from the same sender and it worked fine.

Answer 1

You really need access to the mail server logs to be able to diagnose this.

Possible root causes include greylisting (the remote host reported a transient error, but will accept the message if you try again after a reasonable amount of waiting), local misconfiguration or network error, remote misconfiguration or network error, and of course, there are still spam filters which will silently delete a blocked message.

Answer 2

OK I figured it out. You have to attach HTML only, otherwise, it will try to render the plain text and not show the html.