In the Mail Chimp list, you're syncing with, check the list fields and merge tags. Make sure that there's only one field with the "EMAIL" merge tag:
![](/tntmpd/cfs-filesystemfile.ashx/__key/CommunityServer.Components.ImageFileViewer/CommunityServer.Wikis.Components.Files.en/1222.mc_5F00_1.jpg_2D00_550x0.jpg)
![](/tntmpd/cfs-filesystemfile.ashx/__key/CommunityServer.Components.ImageFileViewer/CommunityServer.Wikis.Components.Files.en/8686.mc_5F00_2.jpg_2D00_550x0.jpg)
Make sure the "EMAIL" field is FIRST!
If it's not first, under the "Settings" menu, click on "Show/Hide List Columns":
![](/tntmpd/cfs-filesystemfile.ashx/__key/CommunityServer.Components.ImageFileViewer/CommunityServer.Wikis.Components.Files.en/1157.mc_5F00_settings_5F00_show_5F00_hide_5F00_columns.png_2D00_550x0.png)
Then, drag "EMAIL" to the top of the list (might require Firefox):
![](/tntmpd/cfs-filesystemfile.ashx/__key/CommunityServer.Components.ImageFileViewer/CommunityServer.Wikis.Components.Files.en/5226.drag_5F00_email_5F00_address_5F00_to_5F00_top.jpg_2D00_550x0.jpg)