does imap leave messages on server
Hopefully this helps out a bit â°. Level 10 (123,375 points). If you used the Yahoo account preset when creating your Yahoo account on your iPhone, the account was created as an IMAP account with the iPhone's mail client. There is no setting to leave messages on the server when downloaded by an IMAP account. If there are random gaps of missing messages, this is probably due to your account setting for removing messages from the server when downloaded by Outlook, since you are accessing your Yahoo account as a POP account with Outlook.