Question

I’ve been using php to send html emails to people daily for over a year and it has always worked until today, all the emails sent to gmail accounts just displayed the html code. I haven’t changed any code recently. It always just displays the html code now in gmail instead of showing the hyperlinks and images.

Here’s what it shows:

Reply-To: [e-mail]

MIME-Version: 1.0

Content-type: text/html; charset=UTF-8

X-Mailer: PHP/5.3.2 Message-Id:
<[e-mail]> Date: Wed, 25 Apr 2012
20:03:03 -0700 (PDT)

… etc.

What happened?
Did google change something?

Answer 1

This has also started happening for me since yesterday: 25/04/2012.
I have been receiving the same email, same format daily for the last few years – and yesterday seized to stop displaying in HTML format!

Comparing the message content – only thing different I can see from a previous email that displayed correctly is the addition after the authentication results of the following:

Date: Wed, 25 Apr 2012 17:31:23 -0700 (PDT) Message-Id:
<[e-mail]>

Could this have anything to do with the cause?

Scrap the above – take a look at this stie: http://johndoesdesign.com/blog/2012/php/getting-your-php-html-email-to-render-in-gmail/

It appears the cause is the "\r\n" – use just "\n" instead. Why this would just start happening out of the blue – something must have changed gmail’s end. I’ve tried this and solved the issue for me. Hope it does for you.