In the Envelope Address dialog box, insert the merge fields for the address information. To have the first name and last name on the same line separated by a space. In the Mail Merge Helper dialog box, click Edit next to Create , and then click the envelope main document. Verify the return address, or delete it if the envelopes have a preprinted return address. You can move your mouse up to the text that appears for the return address, select that text and delete it.
Word always keeps placeholders where the return address normally is.
As long an you cannot see text that will print, nothing should be printed. In the Mail Merge Helper dialog box, click Merge . In the Merge to box, click Printer . To print envelopes only for selected addressees, click Query Options , and then specify criteria for selecting the data records. Make sure that the printer and envelopes are ready, then Click the Merge button.