I am a consulting oriented small business and need to email categories of my contacts using the merge functions, and attach .pdf or other files from time to tim. It appears that Outlook doesn't support the attaching of files. In my research it appears there are two add-ons that might work : Mailmerge Pro and Mail Merge Tookit. Is one better than the other, and are there others you would reccomend. BTW, I use Office 365 and wasn't sure what to list as my system. Thanks in advance.