You can use a template and macro to replicate the feature. Outlook 2007 and up do not have the New Letter to contact command.

Click Print to print immediately or Add to document if you are writing a letter and want it saved with the document.

Contacts you’ve previous addressed envelopes for will be listed on the MRU. If this is the first time using this feature, select Insert Address to browse the Outlook Address Book for an address.

Click Envelopes to open the Envelopes and Labels dialog.

You can use Word's Envelopes and Labels feature to print envelopes.

If you want to see custom fields in the Word merge field list, make sure you choose All contact fields under Fields to merge in step 3. Save the merge document if you think you might use it again.

After Word displays the merge document, add merge fields, other text and formatting as needed.

If you are creating labels, click the Setup button to select the label size.Make your choices on the Mail Merge Contacts dialog box, then click OK.

Choose Mail Merge from the Actions chunk on the Home ribbon.Select one or more names in the contacts folder.

The steps are similar in all versions of Outlook, however, the menus are different. You can start the merge from any Outlook contacts folder.

Microsoft office 2016 mail merge labels