In reading one of Campaign Monitor's more recent posts: Override the minimum font size on the iPhone and iPad, we had a hunch that this trick might also work on the native Android email client so we decided to investigate a little further.

We had a recent question in our forums regarding which clients support hexadecimal vs. RGB values so I figured I would publish the results of my research to our blog as well.

In summary, it is best to avoid using rgb(255,0,0) values when developing HTML emails. Long hex (#F00F00), Short hex (#F00) and colors (red) are supported in all the email clients I tested.

Have you ever noticed the small spacing below images in Hotmail and Gmail? Every browser renders this spacing except for IE 7 and lower. Just after writing this blog post: The Mystery of Hotmail's Strange Image Spacing, and after lots of hair pulling, we realized that the culprit for this pesky occurrence was actually the DOCTYPE.

As a follow up to our original article just a short time ago, we have confirmed that Google has added a "Show Images" feature to their iPad mobile application for Gmail.

Have you ever wondered what your style sheets look like? Are you creating duplicate styles because you forgot what you did a month ago? Here is a new, FREE developer tool that allows you to preview every CSS declaration you've ever written.

You heard correctly, the Gmail app for the iPad does NOT support images within HTML emails. Instead it displays them as if they are blocked and as far as we can see, there is no option to turn off the image blocking.

To date, there are two different methods for generating a preview of an HTML email in the most popular email clients. Each solution comes with its own set of challenges and limitations. In this article, we'll watch as the Tortoise and the Hare battle it out to see which strategy wins the race.

We have just released beta versions for both the native Android email client as well as the Android Gmail client application. For those who have not yet had the privilege to pick up one of these extremely sleek and user friendly devices, let's dive into a few high points with regard to the way they render emails.

This is an email that was sent on October 26, 2010 for Sony Vegas Pro.  In this demo, we will show you how the text wraps for easy readability within the email client that comes standard on the Android 2.2.

It is no surprise that your email can be received in many different email clients. It may, however be surprising to hear that each email client uses it's own rendering engine which means that there are even more varients to consider. The intention for this article is to help you with a quick, easy way to ensure your email renders properly in 67 variations of the most popular email clients used worldwide in just 2 easy steps.

As if email development wasn't already scary enough, it seems as though we are pushed even further into the HTML and CSS dark ages when it comes to the subject of DOCTYPE. After quite a bit of testing over the past year, we've have come to a very clear understanding of the DOCTYPE, it's effect on your layout and how being aware of it can save a lot of time and frustration.

Check out our new UI

We’ve just released a new and improved code analysis! Now you can review code discrepancies based on a classification of critical, moderate, or minor. We’ve also released several new updates including an archive of the latest tips and tricks for each email client, setting up your own user preferences, re-running tests with ease and much more!

We are excited to announce that we have just completed several major enhancements to our testing platform! New product updates include mobile device simulations (iPhone & BlackBerry), new and improved HTML validation, convert your embedded styles to inline, Outlook 2010 final release, updated test archiving and discounted subscription plans. 

Google, in conjunction with Typekit, just released a new Font API that allows designers to easily import non-standard OS fonts into their web pages. The API uses the CSS @font-face rule but relies on their CDN to provide the data bandwidth, which is probably much faster than yours. After hearing about this we wanted to investigate and find out the email client support for such an API.

We are excited to announce that we have just completed some enhancements to our email testing platform! We've added an Email Inbox, Outlook Express, Send Results to a Friend and Translation tools. Be sure to jump online and test drive the new product features, we'd love to get your feedback!

Although our email testing simulation is intended to make your life much easier, it is still vitally important to test your email in each of the popular web browsers as well.

In taking into account the complexity of testing your email, we must first consider the most popular email applications used today.  Then we will take a look at web based email clients, and finally we will touch on ways to ensure that your email will render correctly on mobile devices.

How to test your HTML email if you are not a programmer or web designer.

We have had a few people ask us how they can use our email testing simulation tool if they do not have access to their URL or HTML code. If you are an email marketer and you are using a third party service or application to create and manage your email campaigns, this article is for you.

Allow your customers to see an instant preview of their email in 48 variations of the most popular email clients using Email on Acid's API (Application Programming Interface).

Our API is completely customizable and you can utilize any or all of the features provided. Such features include the email preview in any of the email clients we support, our code analysis, the plain text generator, image blocking, and spam analysis tools.

We currently offer two distinct integration options:

	Reseller Program The first is a reseller program designed to help you generate additional revenue from your current member base. As a reseller, you can mark up our flat rate per scan as much as you want. The flat rate is discounted based on monthly volume. Resellers have the option to private label or, for a discounted rate, they may use the existing Email on Acid brand header and footer.
	Monthly Subscription The second integration option is a monthly subscription allowing for unlimited email tests (or scans). This program is designed to help you provide a value added service to your existing members. Monthly API subscribers pay a royalty fee based on volume of scans per month.

At this time, we are open and flexible regarding our API and would be happy to discuss the best possible integration solution for you. You may even consider using a blend of the two options if it better suites your pricing model.

Read more about our api technology and usage ideas...

After much anticipation, we are proud to announce that our online email testing tool is no longer in Beta! Our new and improved email simulation now includes the following enhancements...

We are excited to announce that we have recently made some drastic improvements to our Outlook 07 preview. We are hoping that this will give developers a better understanding of how to design and construct HTML and CSS emails that comply with Outlook's often frustrating MS Word engine.