Call her ma'am.
If written, Ms. Jane Doe is acceptable.
Mrs. is a title of respect that may be used to address a married woman. Ms. is preferable, especially if you do not know what the woman's preferred title is, or if you do not know the marital status of the woman.
Unless the woman specifies otherwise, always address correspondence to Ms.
You address a woman as Mrs. when you know she is married. When you know she is single you address her as Miss. When you are uncertain about her marital status it is best to address her as Ms.
You can address an unmarried woman as "Ms." just as well as a married woman. In a situation where you are unsure of the marital status, "Ms." is a safe form of address, and avoid "Miss" and "Mrs."
In most cases, if you know that a woman is married you would call her Mrs., and if you do not know whether she is married, or if you know that she is not married, you would call her Ms. Also, it is polite to address people as they wish to be addressed, so even a married woman could be addressed as Ms. if that is how she wishes to be known.
A respectful way of addressing a woman is to call her Ms. or Miss. This is polite even when you do not know if she is married.
You should use Ms or if your talking to her use miss
If you are unaware whether a woman is married or not, use Ms. If it is a man, obviously, Mr. is used in all cases. so Ms. for a woman, and Mr. for a man.
Yes, it is appropriate to address a woman as Ms. in a professional email if you are unsure of her marital status. If you know she is married and prefers to be addressed as such, you can use Mrs.
Mrs. is when a women is married. Ms. is when they are not married. Miss is when thay are younger.
When you don't know about the marital status of a French woman, you can write to her "madame". She won't be offended. Anyway there is no real equivalent to 'Ms' in French.
You are such a dufus.... Candice is a married woman with a 5 month old girl... That is ashame that you dont know that..