Wednesday, 17 October 2012

Inconsistent CSS styles applied to an email in Outlook when sending email from SharePoint

Recently I was working on a timer job that sends (html) emails via SharePoint's SPUtility.SendEmail function. The CSS styles I used in the email body were being inconsistently applied to the email when viewed in Outlook 2010. The method I was using was:

Create the email body, applying the styles at the top of the email body.

Send the email setting the fAppendHtmlTag parameter to true.
SPUtility.SendEmail(web, true, false, recipient, subject, emailBody)

To fix the issue, I set the fAppendHtmlTag parameter to false, instead adding the HTML tags myself, as such:
var body = String.Format("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"\"><html><head><meta http-equiv=\"X-UA-Compatible\" content=\"IE=8\" /><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />{0}</head><body>{1}</body></html>", AddStyles(), emailBody);

Then send the email:
SPUtility.SendEmail(web, false, false, recipient, subject, body)

This worked nicely, and the CSS styles were now applied consistently throughout the body of the email.

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