Constant Contact makes sure your emails are delivered to your subscribers in the correct
format every time. Standard email clients can’t tell which email format each recipient is able
to receive — HTML or text. If you send HTML from your standard email client, some of your
recipients will get gibberish that they can’t read. In addition, the size of your email may exceed
the requirements of the ISP or corporate domain, making it more susceptible to blocking and
filtering. If you send only plain text, you’ll be missing out on response rates up to 35% higher
with HTML.