There are a few options when looking at mail. I would assume mail to be messages that are more than a few sentences long. I have written mail that was several paragraphs, and that is how you should do mail services. If you are only going to write a sentence or two, then IM is likely a better option. If you are curious about my [im] options. This section will focus on the resources I support.
As for mail, there are three options. You have email which is my preference. I prefer email for the reliability, and speed. There is postal mail. That is when you write a letter, insert it into an envelope, and then send it off with the appropriate amount of postage. I only check my mailbox once a week, so this isn’t going to be something that is quick. The last option is the Messaging system within a website. I will not communicate that way. You can visit the page about that option to learn why.