Can you use Ms instead of Mrs?
Can you use Ms instead of Mrs? Mrs. is a title used for a married woman. The more neutral title Ms. can be used instead for a woman whose marital status is unknown or irrelevant or who expresses a preference for this mode of address.
Is it necessary to change from Ms to Mrs?
Even if you know the woman is married and you know that she has taken her husband's last name, it's always safest to go with “Ms” unless you know for a fact she prefers “Mrs.” Indications of this may be in email signatures, name plates on desks, specific titles given in formal invitations “Mr.