Is there anywhere where Apple describes the function and use of every field and popup and checkbox in the email setup "panes"???

Question

So you call up an account in email
Account Information is selecgted in the 3-choice menu-bar/button (what is that thing called, anyway? An "inspector"? (frown).
Then check "enable this account"--is selectable
Then Account type: iCloud IMAP or example--this is NOT selectable.
Then "Description field" What's it for, where does it show up, especially if it shows up in other "related" or "integrated" programs?
Alias popup: What's this for? How do you use it. What approaches, strategies, effects might one employ?
Email address is pretty straight forward--but see "user.name" in the "server sub-box/sub-pane" below.
Full Name:  What full name? Where does it appear in use? I cannot access it from the pane/panel, so how do I set it, or who/what sets it?
Outgoing mail server (SMTP): OK, here's a popup that isn't congruent with "account type" in the first sub-pane. Or is IMAP only an extroverted function/setting, and (SMTP) is a introverted one (IMAP for outbound, SMTP for inbound)?
Now comes Confusion: Outgoing Mail Server popup menu, which leads you off to a wholenother pane that lets you create new/delete old incoming server names.
There's a Description (what's that for, what does it do?  Ditto Server name--I get than's something like smtp.ISP.Com or IMAP.ISP.com). You can set those fields in the + menu Account Information Pane, with its blank text fields. And you can also "double-click to enter" that field in the list itself. Why is that?And then I can select Advanced, and get another batch of checkboxes, fields, and popups.
But I left the Account Information pane before asking, What is this Thread-Lock Stitching Certificate thing? (Or is that Transport Layer Secrecy Sertificate, what?  None is displaying now, but if I popup what's beneath it a humongously long "ID" string, which I take to be, what, my Apple ID? A public key/ provate key encryption string/key? How do I use it if I'm trying to keep the National Surveillance Agency from eavesdropping, "in the clear," my every blessed keystroke, "phrase-stroke" (think VoIP), and if I use the thing, can the president just press a button and send a drone to blow me off the planet (and anyone near me at the time--always great fun for friends and family)?
And never mind router and FiOS, etc., modem settings. and the Network settings outside of email....
I guess my bottom line is, the user is presented with a rich smorgasbord of significant choices by all of the panes and panels, etc., on the mac, iMac, iPad-Phone-Watch real soon now, mac pro, macbook pro, etc.  But the specific description of the proper use of these description/instruction on their use and function is impoverished.  I think manuals used to handle some of these issues. But where are the manuals? Or am I just so overwhelmed by the complexity of what was once a simple user interface that I can't see pointers (in light grey type on lighter grey backgrounds--what the heck is wrong with black type, I'd like to know!) staring me in the phiz. Oh, help.

Answer 1

Hi Cff7dxp,
I am glad to hear that your issue has been resolved from the provided troubleshooting steps. Please feel free to post in Lenovo Community Forums if you have any further queries!
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Hemanth Kumar
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