Yes, when you delete something in "All Inboxes", it's also removed from the email account.I have gmail also and an account showing "all mail" shows up. If I delete everything in the "all mail" account, will that also delete them in the gmail account. Some I need to keep but don't need them in two places.
Yes, when you delete something in "All Inboxes", it's also removed from the email account.
There's a simple solution, if you don't want to have something in two places: delete "All Inboxes":
Open the Mail app, then tap "Edit" above "All Inboxes" (next to "Mailboxes"). Next thing you'll see is this:
View attachment 48907
Remove the check mark from "All Inboxes" (or whatever you don't want to see), then tap "Done". The only thing you'll see afterwards are your email accounts.