Sorry for not answering directly, but you should move on from Yahoo mail. They have repeatedly been hacked, with full unencrypted credentials being leaked online. They did not properly disclose the hacks, and have not met the restitution requirements imposed upon them.
Additionally, their mail clients lack features found in others like Gmail and Outlook.
Ideally, you'd fully migrate away from them.
Option 2 would be to continue using your yahoo.com email address but in a different app, like the Gmail app. This isn't ideal as your mail is still going through your Yahoo account which may be compromised.
The least ideal option would be to, at the very least, change your Yahoo password immediately. This should be done no matter which option you choose.
Again, sorry for not directly answering your question. But I find a lot of people in the community are still using Yahoo mail. For some reason, when the non-Jewish community at large has almost entirely left it for the above stated reason.