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This morning, we received an excellent question from one of our customers, which read: “I’ve got a really tall image in my email. Why is it clipping in Outlook?”.

As it turns out, email clients that use the Word 2007 rendering engine (ie. Outlook 2007 and Outlook 2010) have inherited the Word 2007 image height limit of 18 inches.

This is nice to know if you’re working in Word, but how about when you’re designing for email? We ran a test and found out that Outlook ’07 and Outlook ’10 truncate the upper portion of all images higher than 1728px from the top-down. So, if your image is 250px longer than the 1728px limit, 250px will get lopped off the top. Take a look at the screenshots below to see this in action:

Outlook 2003 (and all other major email clients)


Outlook 2007 & Outlook 2010


You may be wondering, “Who adds images larger than 1728px high to their emails?” Well, a few days ago, we linked back to an impressively long, image-only email that, despite its creativity, wouldn’t have made the cut in Outlook ’07 and ’10. So before you warm up your scrollbar, don’t forget that Outlook has its limits.

Many thanks to @sarahJ26 for tweeting this in. If you have a question or quirk you want to share, send us a tweet or visit our forums!

  • Remy Bergsma

    Life just got more interesting for folks like us. Nice insight Ros: kinda stupid that an email client inherits these kinds of mishaps from a Word processor. Oh well :)

  • Ros Hodgekiss

    Thanks, Remy! Well, with Outlook 2010 just around the corner, there’s no looking back now. :)

  • Morley

    In all fairness, I should point out that you can (and should) cut the image into smaller pieces so that the top part of the image will render before the bottom part. So you should rarely have to make a 2000px-high image.

  • Ros Hodgekiss

    Totally agree with you Morley, emailing a 2000px high image isn’t the most desirable outcome. For the most part, we’re getting this information out there, as the waterslide email isn’t the first I’ve seen that’s played on the ‘really, really long email’ idea.

  • Twitch

    The one big image would take much less to load than lots of smaller images (only have to load header information for 1 image)

  • maya

    What about Body Background Images? Did you also test these?

  • Ros Hodgekiss

    Hi maya, no, this wasn’t part of the test, although we may take a look at this in the future.

  • dekim

    I had a similiar problem with an image being cropped. I tried to cut the image in 2 and stack it like the user mentioned above, but it created a 5px gap between the 2 stacked images that would not go away.

  • René Sackers

    Thank you. Even in 2015 (nearly 2016), we just ran into this problem, in Outlook 2013. You just saved us some headache.

  • Jon McLaren

    As others have recently said, even in 2015 Microsoft can’t differentiate between a printed page and an email…. what troubled me for about an hour ended up making my day after reading this. THANK YOU. If anyones looking for the solution, simply cut up the image into pieces smaller than 1728px and you should fine.

This blog provides general information and discussion about email marketing and related subjects. The content provided in this blog ("Content”), should not be construed as and is not intended to constitute financial, legal or tax advice. You should seek the advice of professionals prior to acting upon any information contained in the Content. All Content is provided strictly “as is” and we make no warranty or representation of any kind regarding the Content.
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