Add ImprovMX back

Author: iostpa

src/guides/improvmx.md

@@ -0,0 +1,38 @@
+---
+label: ImprovMX
+icon: /media/improvmx.svg
+tags:
+    - guides
+---
+
+# Setting up ImprovMX with is-a.dev subdomain
+
+This guide will walk you through the process of setting up ImprovMX with your is-a.dev subdomain.
+
+## What you need to do before you continue.
+
+1. Have a ImprovMX account. If you don't have a ImprovMX account, please go to [their site](https://improvmx.com) and make a account.
+2. You should have already forked the [is-a.dev repository](https://github.com/is-a-dev/register). If you haven't forked the repository, please make one by using [this link](https://github.com/is-a-dev/register/fork).
+
+## Making the file.
+
+First go to the fork you've made, then go into the `domains` directory and make a file. The file should be named like this: `subdomain.json`. (Replace `subdomain` with the subdomain name you want of course.)
+
+After you've made the file, you should put in the file this:
+```json
+{
+    "owner": {
+        "username": "github-username"
+    },
+    "record": {
+        "MX": ["mx1.improvmx.com", "mx2.improvmx.com"],
+        "TXT": ["v=spf1 include:spf.improvmx.com ~all"]
+    }
+}
+```
+
+**After you have made the file, you should make a pull request to the [is-a.dev repository](https://github.com/is-a-dev/register).**
+
+## Configuring
+
+After it has been merged, it should be automatically recognized and should start working. If you haven't configured it beforehand, please go to the [ImprovMX dashboard](https://app.improvmx.com/) and add the domain there.

src/index.md

@@ -12,16 +12,17 @@ You can read about the domains JSON file structure [here](domain-structure).
 
 ## Guides
 - [Cloudflare Pages](guides/cloudflare-pages)
+- [DanBot Hosting](guides/dbh)
 - [Discord Domain Verification](guides/discord-verification)
 - [GitHub Pages](guides/github-pages)
 - [Hashnode Blogs](guides/hashnode)
+- [ImprovMX](guides/improvmx)
+- [Netlify](guides/netlify)
+- [Other Services](guides/other)
 - [Railway](guides/railway)
-- [Replit](guides/replit)
 - [Render](guides/render)
-- [Netlify](guides/netlify)
+- [Replit](guides/replit)
 - [Vercel](guides/vercel)
-- [DanBot Hosting](guides/dbh)
-- [Other Services](guides/other)
 
 ## Useful
  - [Domain Structure](domain-structure)