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: updates@mysite.com
MIME-Version: 1.0
Content-type: text/html; charset=UTF-8
X-Mailer: PHP/5.3.2 Message-Id: <20120426030303.E8B03A295@www1.mysite.com> Date: Wed, 25 Apr 2012 20:03:03 -0700 (PDT)
... etc.
What happened? Did google change something?