Members have the option to choose either plain text (no HTML) or rich text versions of BigTent emails. Currently, the plain text version of the Digest has some funky formatting issues.

While we work to fix this bug, try switching to rich text emails by going to my bigtent > settings > email options > email format. Most email clients (Gmail, Yahoo, etc.) can handle rich text  and your Digests and other emails will be much jazzier, with colors, fonts, links, and images!