Mail Merge Toolkit is a powerful add-in for Microsoft Office to extend mail merging capabilities in Outlook, Word, and Publisher. Allows to insert data fields into subject field, add attachments, send e-mails 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 opportunities and is more reliable in operation. Coded to avoid security prompts.