Feingeist Software
Graffiti
Trial versionMake your e-mail signatures stylish.
MacKiwingu
Trial versionEasily mount remote storage in the Finder.
MacFace2Face
FreeApple Mail plugin that adds people's faces to their e-mail from Google+, Flickr, or Gravatar.
MacForgetMeNot
Trial versionRemind yourself to include e-mail attachments if you forget.
MacShimo
Trial versionConnect to VPN easily.
MacCargoLifter
Trial versionUploads your email attachments to the cloud to work around full mailboxes or size limits.
Mac