diff --git a/README.md b/README.md
index 7519457..cf837bb 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ A script to facilitate easy installation of a Postfix + Gmail relay for custom e
 # Installing
 Run the following command to install
 ```shell
-curl -fsSL https://raw.githubusercontent.com/TheGreatRambler/SimpleMailserver/main/install.sh | sudo -E bash -
+su - -c "bash <(curl -fsSL https://raw.githubusercontent.com/TheGreatRambler/SimpleMailserver/main/install.sh)"
 ```
 The installation script will ask for some values:
 * Domain name: Domain name used in the email, also required to configure SSL
@@ -55,5 +55,5 @@ Check the mail using `runuser -l user -c 'mail'` with the user you entered. Ente
 # Uninstalling
 Run the following command to uninstall
 ```shell
-curl -fsSL https://raw.githubusercontent.com/TheGreatRambler/SimpleMailserver/main/uninstall.sh | sudo -E bash -
+su - -c "bash <(curl -fsSL https://raw.githubusercontent.com/TheGreatRambler/SimpleMailserver/main/uninstall.sh)"
 ```
\ No newline at end of file
diff --git a/install.sh b/install.sh
index 36462d6..6f94048 100755
--- a/install.sh
+++ b/install.sh
@@ -70,10 +70,10 @@ ln -s /snap/bin/certbot /usr/bin/certbot > /dev/null
 
 # Create certificate
 echo "----- Creating SSL certificate -----"
-sudo certbot certonly --standalone --non-interactive \
+certbot certonly --standalone --non-interactive \
 	--domains $MAIL_SUBDOMAIN --agree-tos -m $CERTBOT_EMAIL > /dev/null
 if [[ $? -ne 0 ]]; then
-	echo "Certbot failed, check that you have AAAA records for ${MAIL_SUBDOMAIN}"
+	echo "Certbot failed, check that you have AAAA records for ${MAIL_SUBDOMAIN} and that port 80 is currently unused"
 	exit 1
 fi
 
diff --git a/uninstall.sh b/uninstall.sh
index dc1dd83..66648ea 100755
--- a/uninstall.sh
+++ b/uninstall.sh
@@ -39,7 +39,7 @@ apt-get purge dovecot-core dovecot-imapd dovecot-pop3d > /dev/null
 # Revert certain configs, certbot and UFW are common enough that the user
 #     may have had them before running install.sh
 echo "----- Revert certbot/UFW config -----"
-sudo certbot delete --cert-name $MAIL_SUBDOMAIN > /dev/null
+yes | certbot delete --non-interactive --cert-name $MAIL_SUBDOMAIN > /dev/null
 ufw deny Postfix > /dev/null
 ufw deny "Postfix SMTPS" > /dev/null
 ufw deny "Postfix Submission" > /dev/null