My preview is taking a long time to show.

Because of its reliance on Google Drive’s services to retrieve spreadsheet contents, the Email Range add-on can require 10 seconds to generate and display an email preview. Large selections or complex formatting can increase this delay - fractions are especially slow.

Brief service outages can also cause a preview to fail. (For example, problems with your local network or ISP.) Generally, retrying the preview will be successful. If you find that a preview never shows up, see the advice in this article.

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