change mail-related subdomains

Caddyfile

@@ -3,10 +3,10 @@
 #     acme_ca https://acme-staging-v02.api.letsencrypt.org/directory
 # }
 
-m.yaoi.dog {
+mail.yaoi.dog {
     reverse_proxy stalwart:8080
 }
 
-mail.yaoi.dog {
+post.yaoi.dog {
     reverse_proxy bulwark:3000
 }

README.md

@@ -32,8 +32,8 @@ specifics for everything
   - **stalwart** – mailserver
   - **bulwark** – webmail
 - via caddy
-  - `m.yaoi.dog` – mail (server & admin dash)
-  - `mail.yaoi.dog` – mail (webmail)
+  - `mail.yaoi.dog` – mail (server & admin dash)
+  - `post.yaoi.dog` – mail (webmail)
 
 **dns setup**
 
@@ -48,7 +48,7 @@ specifics for everything
 
 **first setup**
 - server identity
-  - server hostname: `m.yaoi.dog`
+  - server hostname: `mail.yaoi.dog`
   - default email domain: `yaoi.dog`
   - automatically obtain tls certificate: `true`
   - generate email signing keys: `true`