| AOL 4.0 and 5.0 |
No |
- Text only
- Forms are stripped
|
| AOL 6.0, 7.0, and 8.0 |
Yes |
- Standard HTML
- Forms are stripped
- Rejects email linking to external style sheets
|
| AOL 9.0 |
Partial |
- Disabled HTML images and hotlinks
- Forms are stripped
- Long emails can be turned into .zip files
|
| AOL Webmail |
Partial |
- Doesn't fully support XHTML compliance
- Strips <br /> tags
- Doesn't support anchor tags - clicking anchor tag links opens new inbox window instead of jumping down to the anchored section of the email
|
| Apple Mail |
Yes |
- Standard HTML
- Doesn't support font tags - need to be replaced with <span> tags
- Need to click anchor links twice for them to work
- In El Capitain OSX, anchor links do not work at all.
|
| Compuserve |
No |
|
| Comcast Smartzone |
Yes |
- Standard HTML
- Blocks background images
- Anchor links or table of contents links open a blank window instead of jumping down to anchored section of the email
|
| Comcast XFinity |
|
- Clips long newsletters - must shorten email or link to a web page
- Anchor links or table of contents links open a blank window instead of jumping down to anchored section of the email
|
| Entourage (Mac) |
Yes |
|
| Entourage 2008 (Mac) |
Partial |
- May block background images
- Issues supporting forms, Flash or other plug-ins, CSS floats, CSS positioning, and animated GIF's
- Replaces bullet points with images in ordered lists
|
| Earthlink |
Partial |
- Occasionally will show text as underlined
|
| Eudora 3.1 |
No |
|
| Eudora 4.0, 4.2, 4.3, and 5.0 |
No |
- Standard HTML supported when Internet Explorer is configured as the HTML viewer
- Poor HTML support in default Eudora HTML viewer
|
| Gmail |
Partial |
- Blocks HTML images by default
- Doesn't support bookmark anchors
- Clips long newsletters - must shorten email or link to a web page
- Hyperlinks phone numbers in emails
|
| Hotmail |
Partial |
- Blocks images by default
- Strips <head>, <title>, <meta>, and <body> tags - must use inline styles
- Disables hot links after ~4 mins. and strips background images - need to turn on authentication
- CSS Issues
- Text may appear underlined
- Extra spaces added between lines of text surrounded by <p> tags - Need to change <p> tags to <div> tags in block's Code View or create a new block and recreate the text without copy and paste styles
|
| Juno 4.0, and 5.0 |
Yes |
- Nearly standard HTML
- CSS issues
|
| Lotus Notes 4.6 |
No |
|
| Lotus Notes 5.0 |
Yes |
- Nearly standard HTML
- CSS issues
|
| Novell GroupWise 5.5 |
Yes |
|
| Office 365 |
Partial |
- Standard HTML
- Blocks images by default
- CSS issues
- Anchor links and table of contents don't work
- Images occasionally preview as the size of the original file saved in the Library, causing stretching or distortion - need to resize the image in the Library and re-insert it into the email
|
| Outlook 97 |
Partial |
- No font or link colors
- Issues with alignment
|
| Outlook 98 and 2000 |
Yes |
- Standard HTML
- Doesn't fully support CSS
|
| Outlook 98 and 2001 (Mac) |
No |
|
| Outlook 2003 |
Partial |
- Blocks HTML images by default
|
| Outlook 2007 and 2010 |
Partial |
- Doesn't support forms, Flash, or other plug-ins, CSS floats, CSS positioning, animated GIF's
- Replaces bullet points with images in ordered lists
- Inserts page breaks into lengthy emails that may cause gaps
- Image borders aren't supported
- Hi-def display greater than 1920px by 1080 px scales the text but doesn't scale the images
- Image caption styles are overwritten by Outlook styles
- Images larger than 1728 px in height are clipped
- Adds extra spaces between paragraphs or double spaces text
- Images can appear distorted based on computer display settings
Note: Microsoft has set up a tool to validate your HTML for Outlook 2007.
|
| Outlook 2007 and 2010 (Mac) |
Partial |
- Doesn't support anchor links or table of contents links
- Doesn't support animated GIF's
|
| Outlook 2013 and 2016 |
Partial |
- Inserts page breaks into lengthy emails that may cause gaps
- Adds empty bullet point if the last element in a block is a bullet - either don't end the block text with a bullet point or add <div style="display:none;"> </div> before the closing </ul> tag in the block's Code View
- Hi-def display greater than 1920 px by 1080 px scales the text but doesn't scale the images
- Images can appear based on computer display settings
- Doesn't support animated GIF's
|
| Outlook 2016 (Mac) |
Partial |
- Doesn't support anchor links or table of contents links
|
| Outlook 365 |
Partial |
- Link color defaults to blue unless the preceding text is formatted with a color - need to wrap link in <span> tags and <td> and <div> tags must have different text color
- Anchor links or table of contents links open a blank window instead of jumping down to anchored section of the email
- Text is justified by default, even if left-aligned in the email
- Image padding is stripped out
|
| Outlook Web Access |
Partial |
- Standard HTML
- Blocks images by default
- Anchor links and table of contents links don't work
- Images occasionally preview as the size of the original file saved in the Library, causing stretching or distortion - need to resize the image in the Library and re-insert it into the email
|
| Outlook Express (PC and Mac) |
Yes |
|
| Pegasus Mail 3.1 (Windows) |
Yes |
- Standard HTML
- No link colors
|
| Smartphones (Android, iPhone, etc...) |
Yes |
- Phone numbers may appear hyperlinked (click-to-call)
- Date ranges may be added as an event on the phone's calendar with the physical address from the email's footer attached to it
|
| Verizon |
Yes |
- Standard HTML
- Doesn't support anchor links or table of contents links
|
| Yahoo! |
Yes |
- Standard HTML
- Doesn't support anchor links or table of contents links in all browsers - clicking on them closes the email and returns the reader to their inbox
- Clips long newsletters - must shorten email or link to a web page
|