That's impossible to say without seeing the instructions, and the difference between "first time" and "not first time". So please tell more.
I am moving from a Macbook - Tiger to a Macbook Pro-El Capitan. Earthlink is my ISP and I've used it's Webmail for years and want to continue t do so. When I got my Tiger Macbook, I set up Mail to "work with" Earthlink Webmail via Earthlink's instructions. Only very occasionally do I use MacMail to send an email or transfer my Webmail inbox via "Get Mail." I'd like to keep things this way. Earthlink has provided me a set of instructions for set up in Mail for my new Macbook but the instructions refer to "if this is a first time setup (click this ...." and "if not (click that)...." Question is: what am I? I'm certainly not a first-timer with Earthlink/Webmail; my Tiger-Macbook will still be in use for some time; but it is the first time I'll be setting up Mail with my new computer under El Capitan. Does that make me a first-timer for setup purposes?
Sorry to be so long-winded about this - I'm not secure with EL's responses - can the experts clarify?