Get an email client and start enjoying life again.
email client??? Thunderbird???? please explain for the slow-witted
An email client is a programme which allows you to manage email on your desktop without manually connecting to the provider's website. It will download new messages automatically, provides a platform for sending, replying to, forwarding, and storing messages, and includes necessary related functions such as an address book. Mozilla's Thunderbird (google it) is a popular free one, which I have used without issue for many years.
Users will tell you that an email client is way more intuitive than webmail and also more secure given that your stuff is stored on your computer rather than in the cloud.
...and also you can keep your address book in the e-mail client and not on the web, which means if someone manages to hack your account they don't get your address book, which is often what they're after.
Of course it can, configure a mail app on the iPhone and mail client on the Windows laptop as IMAP and everything will sync between both devices and webmail if you want to quickly check on another machine.
I work between iPhone and Windows laptop - and need access to my email (and folders) on both. I doubt that can be achieved through the way you suggest....
How do you presently access your email on your iPhone. Is it with a web browser or an email app?
See link about using an email client.