How to Delete Imap delete Email from Server?

Tap the Gmail icon to launch its application on your Android mobile phone.
Tap the three-dot or menu icon at the top-right corner of the screen.
Tap the Settings option followed by the General Settings option.
Tap the Gmail Default Action option.
When you see the Default Action prompt box on the screen, tap the Delete option.

How to Stop Iphone Deleting Emails from Server Imap

If you delete the IMAP delete email from your email account, the emails will be deleted from the email server if you are using IMAP incoming server protocol.

If you want to stop deleting emails from the mail server, change IMAP to POP and then perform the instructions provided below.

Navigate to Settings on your iPhone.
Tap the Passwords & Accounts option.
Tap the name of your email account that you need to make changes.
Search for the Advanced option and then tap it.
Move to the Incoming Settings section and then tap the Delete From Server option.
Select the Never option.
From now, you can get the incoming emails without deleting it from the mail server.

Deleted Email is Not Deleted from Server in Imap

If you are not able to delete the emails by selecting the Delete option, follow the instructions below.

Open Outlook.
After clicking the File tab, select the Info option on the left panel of the screen.
From the Account Settings drop-down menu, select the Account Settings option.
Once you double-click the name of your account, the Add Account window will be displayed on the screen.
Search for the More Settings button and then click it in the Add Account window.
When you see the Internet Email-Settings window, click the Advanced tab.
Move to the Deleted Items section.
Select the checkbox next to the ‘Mark Items for deletion but do not move them automatically’ and Purge items when switching folders while online’ options.
Click OK to close the Internet Email Settings window.
From now, the emails that have been deleted in Outlook will be removed from the IMAP delete email server.