Hello,
Mail merge does not send an email, it just created a document. I am guessing you merged to a .html file, hence the thought it should send an email?
The reason 7.1 SP2 and latter versions use .html files to merge to, is so that word is not required, and the mail merging can be carried out in Chrome, Firefox and Safari.
So a mail merge will just create the document, it will not send an email.
You can send a 'mass email', but, you would have to create a template with dynamic fields associated to the entity you want to mass email, then from a find/group etc. select 'New Email', this would then merge the group contents to the fields you have specified in the email, and send the emails to the valid email addresses from within the group.
Hope I haven't got what you are asking confused, and that helps a little.
Thank you very much. I just got back from being closed for the holidays and am being asked again about this. Thanks for the explanation.
*Community Hub is the new name for Sage City