Wanting to delete mail account

If the you have a Configuration Profile for your email account you will need to delete the Profile, which will delete the email account. The instruction link for how to do this is below. The instructions read: Go to Settings> General> Profiles & Device Management - but on my old iPhone 8, (15.3.1) you want "VPN & Device Management." Once you remove the Profile, the mailbox will be gone from your device, and so will all your email. Hope that helps.

Install or remove configuration profiles on iPhone - Apple Support

No, sorry that doesn't work because the "Delete" is missing. I want to delete ab IMAP account and for some reason the "Delete" button is missing.

not even close still can't remove

If the you have a Configuration Profile for your email account you will need to delete the Profile, which will delete the email account. The link for instructions on how to do this is below. The instructions read: Go to Settings> General> Profiles & Device Management - but on my old iPhone 8, (15.3.1) you want "VPN & Device Management." Once you remove the Profile, the mailbox will be gone from your device and so will all your email, so consider backing up all your email first. If your email is stored on a server and you reinstall your email on a device you should be able to recover the email stored on that server. Hope that helps.

Install or remove configuration profiles on iPhone - Apple Support

Try this -> go to Settings -> Mail -> Accounts -> scroll & tap the email address you want to delete -> scroll down & tap Delete account.

If the iPhone is running iOS 15, the option is there as my previous post.

Check again.

I am also facing the same issue and the deleted mail account is also connected with my tennis site. Plz, mention there if your problem resolved

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Link:

Install or remove configuration profiles on iPhone - Apple Support