Short description of Mail Merge Toolkit 2.5.6: This Mail Merge Toolkit is a powerful add-in for Microsoft Office extending the mail merging capabilities in Outlook, Word and Publisher. Allows you to insert data fields into subject fields, add attachments, send emails in GIF, HTML, RTF and text formats. The mail merging with Mail Merge Toolkit is virtually the same as standard merging, but it gives you more options and is more reliable in operation. Coded to avoid security prompts.