Unless you have a doctorate, honorifics are easy if you’re a dude. It’s “Mr.” in all circumstances.
For the rest of us, not so much. I get Mrs., Miss, and Ms. Simpson in probably about equal numbers.
Even if you actually know me, it’s complicated. I’m not Miss Simpson because I’m married, and I’m not Mrs. Simpson because my husband’s name is Brodbeck, and I’m not Mrs. Brodbeck because MY last name is Simpson.
I think the only really correct way to refer to me, if you’re going to go down that road, is Ms. Simpson. But feel free to just call me Dana.
Also, I’m always surprised how many people didn’t learn this in school like I did, but if you don’t know a woman’s marital status, or even if you do, Ms. is generally the safe choice.