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Tuesday - June 3, 2014
by Mallory Mongeon

Mac out on more Apple previews!

Behind the scenes, we’re constantly working to improve the Email on Acid experience for our loyal subscribers. We are excited to announce that we’re adding Apple Mail 7 & the iOS Gmail App to our library of email clients!

Friday - May 30, 2014
by Mallory Mongeon

Opens, CTR, conversion rate… we have all been on the merry-go-round of interpreting that data.

While those metrics are essential to uncover our audience’s motivation, we can still look deeper into customer behavior to calculate the engagement and effectiveness of our campaigns. We decided to look beyond our basic analytics and are defining engagement metrics and how to apply these metrics to our email strategy.

Friday - May 16, 2014
by Mallory Mongeon

Yahoo! and AOL raised some eyebrows when they changed their DMARC Validation in a super aggressive way in an attempt to block email spoofing attacks on and addresses. Their intent was honorable, but this policy change could end up rejecting your email campaigns, even if you’re a legitimate sender!

Friday - May 9, 2014
by Mallory Mongeon

We thought we would do you a solid and sift through the blogosphere to find the most informative, actionable and insightful posts out there on email. That's right, a blog about blogs. We're so meta! After finding some duds, we compiled an exhaustive list of the email blogs that really take the cake.

Sit back, get comfy and freshen up that cup of joe as you check out our list of 22 email blogs that are absolutely crushing it.

Friday - May 2, 2014
by Mallory Mongeon

A Tip of Our Hat…

Finding fantastic marketing campaigns inspires us! That is why we are tipping our hat to Charity: Water for creating a beautiful Mother’s Day campaign that gets straight to the heart of the matter.

Check it out here!

Monday - April 28, 2014
by Mallory Mongeon

Your business needs to go responsive with your email templates NOW, and not a second later. I know that, and if you’re an email marketer you probably know that as well. The person that may not totally accept responsive design as a necessity, though, is your boss or client.

That's why we took the time to scour the web and find 4 case studies that will make your case for you. So sit back, relax and soak up the empirical evidence below.

Friday - April 25, 2014
by Geoff Phillips

Paragraphs may seem like one of the simplest HTML tags, but you'd be surprised how much trouble some clients can give you trouble with them. The main culprits here are and Yahoo! Mail.

Find out how to control paragraphs in these unruly email clients, in this blog.

Thursday - April 24, 2014
by Geoff Phillips

We can no longer offer Postini SPAM testing, as our Postini services have been migrated to the "Google Apps" filter. Google purchased Postini in 2007, and stopped renewing contracts for Postini in 2012.

Now most companies that used Postini are transitioning to Google Apps or one of the alternative SPAM filters. Learn more about it here.

Wednesday - April 23, 2014
by Mallory Mongeon

If you went through the effort of creating a killer subject line and compelling content, it is an EPIC fail if you forgot to optimize your "call to action," better known as a CTA. Your call to action is the critical stepping stone that turns leads into customers.

Give your CTA the attention it deserves! We've got 9 of the best ways to optimize your CTA to increase your clicks, and in turn, increase your conversions.

Monday - April 21, 2014
by Mallory Mongeon

Wait… don’t hit “send” yet!

As an email marketer, one of the worst, most stomach turning moments is realizing you sent an email out to thousands of subscribers with a mistake in it. We’ve all been there. We’ve all felt that panic.

That’s why we pumped out a pre-deployment checklist you can leverage so you can execute every email with precision and accuracy. Don't press "send" without it!

Wednesday - April 16, 2014
by Mallory Mongeon

Google has been making waves recently with their updates to Gmail, most notably the introduction of the Promotions tab that got all us marketers in a tizzy. On March 25th, 2014 Google announced a new update, called Gridview.

Finally... an update that most marketers are actually excited about!

Monday - April 14, 2014
by Geoff Phillips

As email marketers, we're all aware of the presence of SPAM traps. Traditionally, these come in two flavors: "honeypots" and "recycled" traps.In the last year, Spamhaus has created a new kind of SPAM trap: so called "typo traps."

Read on to make sure your list doesn't get blocklisted!

Friday - April 11, 2014
by Geoff Phillips

We've added a new notification option to our testing suite.

This means you can start a test without ever logging in, and results will automatically be delivered to your email address!

Wednesday - April 9, 2014
by Geoff Phillips

Though many in the email design industry have griped about how Gmail strips the <style> section from emails, this isn't quite true.

Some styles are actually allowed through. Read more to find out which styles made the grade.

Monday - April 7, 2014
by Mallory Mongeon

Out with the old…

A few old clients must retire to make room for the new ones.

We'll be adding Internet Explorer 10 to our repertoire of email previews soon!

Tuesday - March 25, 2014
by Mallory Mongeon

According to, the search volume for infographics increased by a whopping 800% between 2010 and 2012. Platforms like Pinterest and Instagram have risen in popularity due to the public desire for infographics and other image-based content. That's why we searched high and low on the web and found the best email marketing infographics to share with you. Take a quick break from your day and soak up some visually enticing information.

Monday - March 17, 2014
by Mallory Mongeon

Email design can be incredibly frustrating. If you have coding questions you just can't seem to figure out, sometimes it's best to ask an expert. That's why we compiled a list of our most tried and trusted email developers, designers and coders from our community.

Check out our group of rock stars that have received our Acid Stamp of Approval and are absolutely killing it with email.

Wednesday - March 5, 2014
by Mallory Mongeon

If you aren't taking advantage of responsive email design right now, you are flushing money down the drain. We took the time to scour the web and find 10 stellar responsive email templates you can customize and brand to put your best foot forward with your subscribers.

Plus, these templates are hella cheap so you don't have to break the bank kick-starting your next email campaign.

Monday - March 3, 2014
by Mallory Mongeon

We've reached the final blog in our series of Open Rate Optimization. With over 1.9 billion non-SPAM emails being sent every day, your subject lines is what stands between your email being opened or trashed. It is your first (and perhaps only) chance to make an impression and improve your open rates. So how do you nail down killer subject lines? By A/B testing your way to creating captivating openers.

Wednesday - February 26, 2014
by Mallory Mongeon

A common perception is that if you email your list too often, they'll unsubscribe. That is not always the case though. Find out what the sweet spot is for your email marketing sending frequency.

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