alt Hacker News>It is generally considered polite to address a woman by Ms. rather than Mrs., unless the preference of the woman in question is clearly known.
Hm. Weird. Never seen that before. Let's check the source, emilypost.com:
>Mx. Is the universal title that can be used by anyone. It is gender non-identifying. Even if you identify specifically with a gender you may still use Mx. and you may see Mx. used when the sender is unaware of your title.
https://emilypost.com/advice/guide-to-addressing-corresponde...
OK, im out. I'm immediately out.
> Hm. Weird. Never seen that before. Let's check the source, emilypost.com
This is taught to children in the United States. I didn't go to an especially good school and I remember it to this day. If you're not from the US the custom may be different.
Perhaps you will consider the advice from Grammarly [0] as a more acceptable source.
[0] https://www.grammarly.com/blog/commonly-confused-words/ms-mr...