diff --git a/Servers/Linux/iRedMail.md b/Servers/Linux/iRedMail.md
index fb8798d..8cfdbdc 100644
--- a/Servers/Linux/iRedMail.md
+++ b/Servers/Linux/iRedMail.md
@@ -22,6 +22,10 @@ MAIL_DOMAIN="bunny-lab.io" # (2)
 2.  This is the domain suffix that appears after mailbox names.  e.g. `first.last@bunny-lab.io` would use a domain value of `bunny-lab.io`.
 
 You will then proceed to bootstrap a silent unattended installation of iRedMail.  (I've automated as much as I can to make this as turn-key as possible).  Just copy/paste this whole thing into your terminal and hit ENTER.
+
+!!! danger
+    You absolutely need to ensure that `/var/vmail` has a lot of space.  At least 16GB.  This is where all of your emails / mailboxes / a lot of settings will be.  If possible, create a second physical/virtual disk specifically for the `/var` partition, or specifically for `/var/vmail` at minimum, so you can expand it over time if necessary.  LVM-based provisioning is recommended but not required.
+
 ``` sh
 # Check for Updates in the Package Manager
 yum update -y