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Questions regarding the use of iframes in email crop up from time to time. Whether it be to do with adding content from a site, or a ‘Like’ Facebook box, we figured that we’d finally do some thorough tests of our own and put the matter to rest.

So, what was the verdict? After testing an email with iframes across 24 major web, desktop and mobile clients, we found that the results weren’t particularly promising. As iframes can potentially link to shady or plain malicious content (like scripts), a lot of email clients just disable them.

Here’s a breakdown of which email clients display iframes, and which ones do away with them altogether:

Client Iframe displays?
AOL Webmail No
Gmail No
Windows Live Hotmail No
MobileMe No
Yahoo! Mail No
AOL 9 No
Apple Mail 3 / 4 Yes
Entourage 2008 No
Lotus Notes 6 / 7 No
Lotus Notes 8 Yes
Outlook 2000 Yes
Outlook Express 6 Yes
Outlook XP / 2003 / 2007 / 2010 No
Thunderbird Yes
Windows Mail Yes
Blackberry No
iPhone / iPad Yes
Symbian S60 Yes
Windows Mobile 5 No
Windows Mobile 6 Yes
Android (default client) Yes
Android (Gmail client) No

Our advice: given the notably poor adoption of iframes, we seriously discourage you from using them. Even though this means that you can’t add a ‘Like’ box to your email, there are alternate ways to share your campaign on Facebook that you can consider.

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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