If your preferred title does not begin with M, you can write the title you normally use instead. You can also skip the title and write your name directly. The important thing is to provide the name you want the couple to use.
For anyone creating wedding invitations, the traditional “M” is not necessary either. A simple “Name:” line can be much clearer and prevent unnecessary confusion.
In the end, there is nothing mysterious about the little “M.” Just complete it with the appropriate title and your name, then return the RSVP on time and only for the people who were actually invited.
