Why won't my emails delete off of my phone when I delete them off of the computer.

You are Welcome.

When Trying this... verify your mail configurations.

Go Here: IMAP server settings for Yahoo Mail - Yahoo Support

View the Related Articles on the Right-Side of the Page

• Generate third-party app passwords
• POP access settings and instructions for Yahoo Mail
• Fix POP or IMAP client sending and receiving issues

You are welcome!

Alohaginger Said:

"Emails: Why won't my emails delete off of my phone when I delete them off of the computer. I use yahoo."

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Did this start right after the iOS 13 update?

If so, or even if not, remove your Yahoo account from Mail. Add the Yahoo account back in to Mail.